Authority, Ranks and Composite Forms of Ijma

1. The meaning of ijma

إجماع هذه الأمة بعد ما توفي رسول الله ﷺ في فروع الدين حجة موجبة للعمل بها شرعًا كرامة لهذه الأمة.
The consensus of this community after the Messenger of Allah ﷺ passed away is an authoritative basis for practice in subsidiary religious rulings, as an honor granted to the community.

Lexically, ijma can denote determination or agreement. Technically, it concerns the agreement of qualified legal scholars of an era on a legal ruling. A widespread custom or a majority opinion is not automatically consensus: those agreeing must possess the competence to derive rulings from their evidence.

For example, a practice becoming common in many cities is a social pattern, not necessarily a binding scholarly consensus.

2. Why the definition begins after the Prophet’s passing

بعد ما توفي رسول الله ﷺ
After the death of the Messenger of Allah ﷺ.

During the Prophet’s lifetime, revelation and his authoritative instruction resolved disputes. The later technical category of consensus therefore operates after his passing, when scholars must apply the revealed sources to new questions.

Furu al-din refers to practical and inferential legal matters. Foundational truths such as divine oneness and prophethood do not rest merely upon a later scholarly agreement; they have their own decisive sources. Consensus does not replace that foundational evidence.

3. Who counts in a legal consensus?

والمعتبر في هذا الباب إجماع أهل الرأي والاجتهاد
What is relevant here is the agreement of those competent in legal reasoning and independent juristic inquiry.

Fame, general learning, or the number of people expressing an opinion is not enough. Consensus on a derived legal ruling requires ability to understand the legal sources, their indications, and methods of inference. The agreement of laypeople, or someone without insight into legal principles, does not itself constitute this technical consensus.

This does not diminish expertise in other disciplines. The point is that the evidentiary authority of legal consensus depends on appropriate juristic competence.

4. The four recognized forms of consensus

ثم الإجماع على أربعة أقسام
Consensus is divided into four forms.

1. The Companions explicitly agree on a ruling.
2. Some Companions state a ruling while the remainder do not object.
3. Later qualified jurists agree on a matter for which no earlier position of the predecessors is recorded.
4. Later qualified jurists agree upon one of several earlier positions.

The distinction is not merely chronological. The mode of agreement, the status of earlier opinions, and the strength of the resulting evidence all affect the category.

5. First form: explicit Companion consensus

إجماع الصحابة رضي الله عنهم على حكم الحادثة نصًّا
The Companions expressly agree upon the ruling of a legal case.

Here the agreement is explicit: no conflicting position remains within the relevant body of Companions, and their concurrence is established through clear statements rather than inferred silence or later popularity.

The significance lies in the authoritative agreement of the earliest community directly acquainted with the revealed sources. It remains necessary to substantiate any historical claim that such agreement actually occurred.

6. The first form compared with a Quranic verse

أما الأول: فهو بمنزلة آية من كتاب الله تعالى.
The first form is ranked like a verse of the Book of Allah.

The expression bi-manzilat indicates a comparison of probative authority; it does not turn consensus into recited revelation. The Quran is revelation, whereas ijma is an established agreement of qualified jurists.

The practical point is the very high authority given to this confirmed category. A new individual analogy is not treated as a competing authority capable of overturning it.

7. Second form: explicit statements and silence

ثم إجماعهم بنص البعض وسكوت الباقين عن الرد.
Next comes the case in which some Companions express a view and the others remain silent instead of objecting.

A ruling is voiced, it becomes known to other qualified Companions, and no objection is raised. This is not identical to everyone explicitly pronouncing the same judgment, which is why it receives a distinct rank.

Silence can be evidence of agreement only in an appropriate setting: the matter is known, objection is possible, and no alternative reason for silence is present. The absence of a recorded objection by itself must not be treated as proof of universal assent.

8. Why silence is not automatically consent

Meaningful silence differs from a lack of recorded disagreement.

Suppose a decision is announced in one gathering but other qualified scholars never hear of it. Their lack of objection cannot show agreement. Likewise, immediate silence while a scholar is still considering a matter does not establish settled assent.

If a ruling becomes sufficiently known, a reasonable opportunity to object exists, and no objection follows, silence may become meaningful evidence. This distinction prevents an unsupported claim that everyone agreed.

9. Rank of tacit Companion consensus

ثم إجماع نصّ البعض وسكوت الباقين، فهو بمنزلة المتواتر.
The agreement inferred from some explicit statements and the others’ silence is compared with a mutawatir report.

The comparison expresses its strong legal force, yet it is ranked below expressly unanimous Companion agreement. In the former, every relevant person’s approval is explicit; in this category, some assent is inferred from silence.

Calling both “consensus” must not erase this difference in how the agreement is established.

10. Third form: later agreement on a new question

ثم إجماع من بعدهم فيما لم يوجد فيه قول السلف.
Then comes the consensus of later jurists on a matter in which no opinion of the predecessors had been reported.

A legal problem may arise for which no earlier specific view is recorded. Agreement by qualified jurists of a later period may then constitute this third form, provided it is genuinely established and not contradicted by a known earlier position.

It is still scholarly agreement, not a popular vote; the status of earlier disagreement must also be investigated.

11. Rank of the third form

ثم إجماع من بعدهم بمنزلة المشهور من الأخبار.
Later consensus is compared to a mashhur report.

The analogy signals an authoritative position, yet one ranked differently from the first two forms. Not every form of agreement carries identical epistemic strength.

Here mashhur is not simply a topic that many people know about; it refers to a recognized category used in the theory of transmitted evidence.

12. Fourth form: selecting an earlier position

ثم الإجماع على أحد أقوال السلف.
Finally, consensus may arise around one of the positions held by the predecessors.

Earlier scholars may have held several legitimate positions on a problem. Later qualified jurists may converge upon one of those recognized alternatives. That is the fourth form.

The earlier difference is not rewritten out of history. Rather, later agreement selects one previously existing view, instead of inventing a new third position.

13. Rank of the fourth form

ثم إجماع المتأخرين على أحد أقوال السلف بمنزلة الصحيح من الآحاد.
The later agreement upon one earlier position is compared with a sound solitary report.

The comparison identifies a weaker rank than the earlier categories, not the grading of any particular hadith. It is an analogy of evidentiary force within this legal-theory classification.

The proper procedure is to identify how the consensus was formed before asserting the degree of authority it carries.

14. Comparing the four ranks

FormMode of agreementRank analogy
1Companions agree explicitlyLike a Quranic verse
2Explicit opinion plus silenceLike mutawatir
3Later agreement on a new issueLike mashhur
4Later agreement on an earlier viewLike sound ahad

These comparisons concern levels of authority, not the identity of the sources themselves. Determine who agreed, how agreement was proven, and whether earlier disagreement existed.

15. How composite consensus arises

فالمركب: ما اجتمع عليه الآراء على حكم الحادثة مع وجود الاختلاف في العلة.
Composite consensus occurs when views agree upon the ruling of a case but differ about its legal cause.

Imagine two jurists reaching the same result in a compound case. One relies on cause A; the other on cause B. Their practical conclusions coincide, but they are not relying on one unanimously accepted rationale.

The significance appears when the evidence for one of those causes is challenged.

In a non-composite agreement, the jurists share a legal basis rather than reaching one result through separate contingent causes.

16. A worked example: vomiting and contact

ومثاله: الإجماع على وجود الانتقاض عند القيء، ومس المرأة.
An example concerns the loss of ablution in a combined case of vomiting and touching a woman.

One person both vomits and experiences the relevant physical contact. The Hanafi position treats qualifying vomiting as nullifying ablution; the Shafi'i position treats qualifying contact as nullifying it. Both may therefore conclude that ablution has been lost in the combined scenario.

Common result: renewed ablution is required.
First jurist’s reason: vomiting.
Second jurist’s reason: contact.

Agreement on the result is not agreement on the cause.

17. When one rationale fails

ثم هذا النوع من الإجماع لا يبقى حجة بعد ظهور الفساد في أحد المأخذين.
This type of consensus does not retain the same authority once a flaw is revealed in one of its underlying grounds.

In the vomiting-and-contact example, if the reason used by one jurist is shown to be inapplicable, that jurist may no longer reach the earlier result for the compound case. The common conclusion was contingent upon separate legal causes.

This does not deny the authority of every consensus. The qualification concerns precisely this composite agreement, where different reasons supported one apparent outcome.

18. A judicial parallel: testimony later undermined

ولهذا إذا قضى القاضي في حادثة ثم ظهر فسق الشهود أو كذبهم بالرجوع بطل قضاؤه.
Likewise, if a judge rules and the witnesses’ disqualification or falsity later becomes evident through their retraction, the basis of the judgment is undermined.

The court ruling was formally reached on the strength of testimony. If the testimony is no longer legally sound, the judicial justification cannot simply be retained as before. This question concerns the authority of the court’s evidence, not necessarily the private factual merits of the claimant’s claim.

Principle: weakening the legal basis can change the status of a ruling resting upon it.

19. Changing circumstances and the operative cause

سقطت المؤلفة قلوبهم عن الأصناف الثمانية
A ruling’s operative application may cease when the cause underlying it no longer exists.

The historical juristic discussions of those whose hearts were to be reconciled and the share attributed to the Prophet’s relatives illustrate an important difference: a situation-specific entitlement may cease to apply when its operative rationale is absent. This is not the same statement as claiming that a Quranic text itself has been repealed.

The examples belong to the Hanafi legal-theory discussion. Other jurists may differ on the relevant legal details and applications.

20. Removing impurity versus ritual purification

إذا غسل الثوب النجس بالخل فزالت النجاسة يحكم بطهارة المحل.
If a soiled garment is washed with vinegar and the physical impurity disappears, the place is treated as clean.

The case concerns removal of actual impurity from an object. It must be distinguished from removing ritual impurity (hadath) through the prescribed forms of ablution or bathing, for which the law specifies its means.

The example illustrates that two rulings described with the word “purification” may operate through different legal causes. A liquid effective in one setting is not therefore sufficient for every other kind of purification.

21. No-distinction arguments: what is being claimed?

ثم بعد ذلك نوع من الإجماع وهو عدم القائل بالفصل.
Another form of consensus discussed is the absence of anyone distinguishing between two cases.

This argument says that because the jurists do not separate two related cases, a principle established for one should carry over to the other. But such reasoning is not automatically valid.

The decisive question is whether the controversy in the two cases has one common source or different sources. A common underlying principle can support the argument; unrelated underlying grounds cannot.

22. The two forms of no-distinction reasoning

وذلك نوعان: أحدهما ما إذا كان منشأ الخلاف في الفصلين واحدًا.
The first form occurs when the two disputes arise from one common underlying issue.

والثاني: ما إذا كان منشؤه مختلفًا، والأول حجة والثاني ليس بحجة.
The second occurs when their underlying grounds differ; the first is authoritative, the second is not.

One origin: both cases follow a shared legal principle, so establishing that principle affects both.
Different origins: cases may look related but have separate proofs. Resolving one does not automatically resolve the other.

23. One common origin: juristic dispositions

قلنا يصح النذر بصوم يوم النحر، والبيع الفاسد يفيد الملك لعدم القائل بالفصل.
Examples connect the validity of a vow to fast on the day of sacrifice and the legal effect of a defective sale through the no-distinction principle.

The shared underlying question is whether prohibition of a juristic disposition necessarily destroys its legal constitution or can instead render it defective while leaving particular consequences. If one principle governs both branches, reasoning from that common ground is possible.

This does not make the prohibited conduct permissible: legal constitution or effect is distinct from permission to perform the act.

24. A further shared-origin illustration

لو قلنا إن التعليق سبب عند وجود الشرط، قلنا تعليق الطلاق والعتاق بالملك وسبب الملك صحيح.
If a conditional declaration is treated as taking operative effect when its condition occurs, the questions of conditional divorce and emancipation connected to ownership or its cause are analyzed through that common rule.

Both are different kinds of legal dispositions, yet the point connecting them is the effect of a condition when it is fulfilled. Their comparison is meaningful only insofar as the same underlying legal proposition controls both cases.

The presence of conditional wording alone does not justify equal treatment across every legal context.

25. Different origins: why a forced analogy fails

ومثل هذا القيء غير ناقض، فيكون المس ناقضًا، وليس هذا بحجة.
Similarly, establishing that vomiting does not nullify ablution does not by itself establish that contact does; this is not a valid proof.

The two ablution questions may rest on independent evidence and distinct causes. Resolving one does not prove the other. An assertion that no jurist differentiated the two cannot replace a missing common legal premise.

Overall conclusion: evaluate the qualified participants, the method by which agreement is established, and the causes supporting the alleged consensus before treating it as legally decisive.