Must the congregant perform the prostration of forgetfulness (sujood as-sahw) pre-emptively or post-emptively—or is it not incumbent upon him at all—if he fell behind his imam by an entire rak'ah, then realized the situation after the imam's salutation?
Source: FtawySummarized from the full answer at Ftawy · imported Sep 2, 2026
If the congregant (ma'mum) lags behind his imam by a full raka'ah without a valid excuse, his prayer is invalid and must be repeated. However, if there is a legitimate excuse (such as forgetting), he continues with his imam and makes up the raka'ah after the imam's .
Summarized from the full answer at Ftawy · imported
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- 173102
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