Chapter: Regarding One Who Has Doubts Over Addition Or A Omission
Iyad bin Hilal said: I said to Abu Sa'eed: 'One of us performs Salat and we do not know how (much) we prayed.' So he said: 'Allah's Messenger (S) said: When one of you performs Salat and he does now know how (much) he prayed then let him perform two prostrations while he is sitting.
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