Sahih Bukhari
Prostration During Recital of Quran
Volume: 002 / Book Number: 019 / Hadith Number: 184
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 Abu-l-Qasim and I will do the same till I meet him."