If the imam recites a prostration of recitation, then bows, and some of the congregation prostrate, what is required of them?

The questioner : Regarding the prostration for forgetfulness when the imam forgets: if he recites a prostration of recitation and then bows, it is easy for the congregation. Some of them prostrated, and after the end of the prayer, some of them performed a third rak'ah, and some of them performed the prostration for forgetfulness.

The Shaykh : The one who prostrated and did not bow—this person must perform a rak'ah. If he did not bow until the imam said the closing salam, he must then perform a complete rak'ah, because the rak'ah in which he left out the bowing is invalid for him. However, in such a situation, when the imam said "Allahu Akbar" (indicating he was bowing) and they realized he had bowed and not prostrated, they should have stood up from their prostration, then bowed, raised their heads, and followed the imam.

The presenter : You owe nothing.

The Shaykh : And they owe nothing if they did this; they owe nothing.