(53) باب السُّجُودِ فِي الْفَرِيضَةِ
It was narrated that Abu Rafi' said:
"I prayed Isha' prayer- meaning Al-'Atamah behind Abu Hurairah and he recited: 'When the heaven is split asunder' and prostrated during it. When he had finished praying, I said: 'O Abu Hurairah, (this is) a prostration that we are not used to.' He said: 'Abu Al-Qasim (ﷺ) did this prostration and I was (praying) behind him, and I will continue to do this prostration until I meet Abu Al-Qasim.
Reference: Sunan an-Nasa'i 968
In-book reference: Book 11, Hadith 93
English translation: Vol. 2, Book 11, Hadith 969