Sujud al-Sahw: Cause, Method, Timing, and Special Cases

1. When Sujud al-Sahw Is Required

Sujud al-Sahw repairs a forgetful omission, delay or displacement of a Wajib act of prayer.

The source's basic distinction is:

• forgetful Wajib omission → Sujud al-Sahw is required;
• deliberate Wajib omission → the person is sinful and the deficient prayer must be repeated; Sujud al-Sahw does not normally turn the deliberate omission into a proper performance.

The commentary reports a few advanced exceptional cases discussed by jurists, but they should not replace this beginner rule.

2. One Set of Two Sajdahs Repairs Multiple Forgetful Errors

The method is one set of 2 prostrations.

Even if several forgetful Wajib errors occurred in the same prayer, one Sujud al-Sahw set is sufficient.

After the 2 prostrations:
• sit again;
• recite Tashahhud;
• according to the chosen view, complete Salawat and dua;
• then give the final Salaam.

Do not multiply the number of Sahw prostrations according to the number of mistakes.

3. When Are the Two Sajdahs Performed?

The Sunnah method is to perform Sujud al-Sahw after Salaam.

On the more correct view stated here, one Salaam to the right is sufficient before the two Sahw prostrations. Some jurists preferred giving both Salaams before them.

If the two Sahw prostrations are performed before Salaam:
• the prayer remains valid;
• the act is disliked in the light sense;
• the Sahw prostrations are not repeated merely because they were performed early.

So the course no longer says 'only one Salaam is legally possible'; it presents one Salaam as sufficient on the more correct view.

4. When Sujud al-Sahw Drops after the Closing Salaam

The source gives situations where Sujud al-Sahw can no longer be performed after the prayer has reached its closing Salaam:

• in Fajr, the sun rises after the Salaam;
• in Asr, the sun reaches its red setting stage;
• after Salaam, the worshipper performs an act that prevents building back onto the prayer, such as deliberate invalidating Hadath or another incompatible act.

A major correction: sunrise here does not mean the completed Fajr itself becomes invalid. The issue is that the pending Sujud al-Sahw drops after Salaam.

The earlier course's invented 'Jumu'ah enters Asr' trigger has been removed because it is not the rule stated in this source passage.

5. The Follower, Masbuq, and Lahiq

The congregational rules are:

• A follower performs Sujud al-Sahw for the prayer leader's forgetfulness, even though the follower personally made no mistake.
• The follower does not perform a separate Sujud al-Sahw merely for the follower's own mistake while following.
• A Masbuq follows the prayer leader in Sujud al-Sahw and then completes the missed rak'ahs. If the Masbuq then makes a new forgetful Wajib error while completing alone, another Sujud al-Sahw is performed at the end.
• A Lahiq does not perform a separate Sujud al-Sahw for an error occurring in the portion being completed under the source's rule.

These categories should not be collapsed into one generic 'latecomer' rule.

6. Sujud al-Sahw in Jumu'ah and Eid

The source says the prayer leader should not perform Sujud al-Sahw in Jumu'ah and Eid prayer because doing so may confuse a large congregation.

The wording in the commentary is treated as a dislike rather than as a claim that the entire prayer becomes invalid if Sahw occurs.

This is a congregational management ruling specific to these prayers; it is not an invented time-based trigger that 'drops' Sujud al-Sahw because Asr entered.

7. If the First Sitting Is Forgotten

If the worshipper forgets the first sitting and starts to stand:

• if not yet fully upright, return to the sitting;
• if already fully upright, do not return in the normal Fard case — continue and perform Sujud al-Sahw.

The commentary gives a finer distinction:
• if one returns while still closer to sitting, no Sahw is required for that return;
• if one had risen closer to standing before returning, Sujud al-Sahw is required.

The matn gives a special return rule for Nafl; the commentary records further juristic preference, so that advanced detail should not be oversimplified into the Fard rule.

8. If the Final Sitting Is Forgotten

If the required final sitting was forgotten:

• before making a Sajdah in the extra rak'ah, return to the final sitting, complete the prayer and perform Sujud al-Sahw;
• if a Sajdah has already been made in the extra rak'ah before any valid final sitting occurred, the original Fard structure is lost and the prayer changes into the technical voluntary form described by the jurists.

A different case: if the valid final sitting had already been completed and the person then stood for an extra rak'ah, return and finish. If that extra rak'ah is tied to a Sajdah after a valid final sitting, the Fard remains valid and the extra portion is completed as a pair of voluntary rak'ahs, with Sahw for the delayed Salaam.

9. Other Practical Cases

The source also discusses:

• A person joins a prayer leader after the leader has already given Salaam but still owes Sujud al-Sahw: the following remains valid if the leader performs the pending Sahw; otherwise it does not remain valid in that form.
• A person who gives Salaam intending to leave while still owing Sahw may still perform it if no incompatible act, speech or turning away has occurred.
• If a person mistakenly gives Salaam after 2 rak'ahs of a 3- or 4-rak'ah prayer thinking the prayer is complete, the remaining rak'ahs are completed and Sujud al-Sahw is performed.
• Prolonged uncertainty about the number of rak'ahs for the duration of a prayer-pillar can itself require Sujud al-Sahw.

These cases show why Sahw should be taught as a system, not merely 'two prostrations after any mistake.'