Is the prayer behind an imam who pronounces "الرحمن الرحيم" (Ar-Rahman Ar-Rahim) as "الطحمن الطحيم" (At-Tahman At-Tahim) in congregational audible prayers valid, given that he knows its correct pronunciation in other contexts?
Prayer behind an imam who mispronounces Al-Fatihah with a melody that alters the meaning is invalid, whether intentional or not. The imam's own prayer is also invalidated if he intentionally substitutes one letter for another.
Summarized from the full answer at Ftawy · reviewed Sep 2, 2026
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