What is the common thread between the use of the word "if" (لو) in its prohibition in the hadith "for 'if' (لو) opens the door to the work of Satan," and in the context of showing mercy for Moses (peace be upon him) in the hadith "If (لو) he had been patient with Al-Khidr, we would have seen wonders from him"?
It was previously explained how to reconcile the prohibition against using the word "if" with the hadiths that permit its use. The prohibition applies when it expresses regret over past worldly matters or objection to divine decree. Anything other than that is not forbidden.
Summarized from the full answer at Ftawy · reviewed Sep 2, 2026
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