(11) باب مَنْ قَرَأَ السَّجْدَةَ فِي الصَّلاَةِ فَسَجَدَ بِهَا
Narrated Abu Rafi`:
I offered the `Isha' prayer behind Abu Huraira and he recited Idhas-Sama' Un-Shaqqat, and prostrated. I said, "What is this?" Abu Huraira said, "I prostrated behind Abul-Qasim and I will do the same till I meet him."
Reference: Sahih al-Bukhari 1078
In-book reference: Book 17, Hadith 12
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 2, Book 19, Hadith 184