Fiqh-us-Sunnah Volume 2, Supererogatory Prayer, Fiqh 2.046.

Section : Prostrations of forgetfulness during the prayer.

It is confirmed that the Prophet sallallahu alehi wasallam sometimes forgot something in the salah. It is also true that he said: “I am a human being and forget like you forget. If I forget, remind me.” There are specific points concerning such prostrations and they are presented below.