The prostration for forgetfulness for one who forgot al-Fatihah and recited a surah, then remembered

Question:
He says: Honorable Shaykh, may Allah grant you success, if one forgets to recite al-Fatihah and begins to recite a surah after it, then remembers and recites it, does he prostrate for forgetfulness?

Answer:
Yes, he prostrates. If one forgets to recite al-Fatihah and recites a surah, then remembers and recites it before bowing, he prostrates for forgetfulness, because it is a forgetfulness regarding the omission of a pillar, a forgetfulness regarding a pillar in its place. Yes.