Question
What should someone do if they remember in the last sitting that they left out a rukn, such as bowing or prostration? Should they repeat the prayer, or should they perform an additional rak'ah, and should they perform the prostration of forgetfulness?
Answer
I say, and with God's help: Whoever remembers missing a prostration must repeat it only, then redo the last sitting and prostrate for forgetfulness. And whoever remembers missing a bow must repeat the unit of prayer and then prostrate for forgetfulness. And God knows best.