The source now adds an important condition. Sometimes reliable evidence1 shows that another supported meaning is possible.
Follow the connection:
first fixed meaning → another meaning established by reliable evidence → act on the established meaning → the earlier doctrinal certainty does not remain unchanged
According to the source:
• Acting on the supported meaning remains binding.
• The earlier level of certainty in belief2 does not remain unchanged.
• Therefore rejecting this evidence-supported interpretation does not carry the same doctrinal consequence as rejecting unqualified definitive specific wording.
The author uses the classification of kufr3 for denial of unqualified definitive specific proof. This lesson teaches the Usul distinction; it does not authorize a learner to apply that classification to any person.
1. Indicator or preventing evidence: reliable evidence that prevents us from treating the first fixed meaning as the only possible meaning.
2. Certainty in belief: accepting the established meaning as doctrinally certain.
3. Kufr: a doctrinal classification of disbelief; this lesson does not teach its application to individuals.