فصل في السهو

Two prostrations for forgetfulness—not on purpose—are obligatory when he omits an obligation, delays it, delays a pillar, or adds an act of the same kind in prayer.

They are obligatory on the follower for the imām’s forgetfulness; if the imām omits them the follower does them.

The follower’s own forgetfulness does not require the prostrations.

Whoever forgets the first sitting: if he remembers while closer to sitting, he sits and owes nothing; if closer to standing, he does not sit and prostrates for sahw.

Whoever forgets the last sitting returns to it as long as he has not prostrated for the fifth [rakʿa] and prostrates for sahw; if he prostrated for the fifth, his obligatory prayer becomes nafl—he adds a sixth rakʿa; if he does not add, it is valid; if he sat in the fourth then rose without salām thinking it the first sitting, he returns as long as he has not prostrated for the fifth and prostrates for sahw; if he prostrated for the fifth he adds a sixth, his obligation completes, the extra is nafl not replacing Ẓuhr sunna, and he prostrates for sahw.

Whoever salutes intending to leave his prayer while sahw remains on him has not left it and prostrates for sahw.

Whoever doubts whether he prayed three or four—and that is the first time it occurs—begins again with salām.

That is better than speech or mere intention alone.

If doubt recurs often he acts on his stronger opinion.

If he has no opinion he takes the lesser [number] and sits where he imagines the end of his prayer.