Sahih Muslim
The Book of Prayers (Kitab Al-Salat)
Book Number: 004 / Hadith Number: 1195
Abu Huraira reported: We performed prostration along with the Messenger of Allah (may peace be upon him) (as he recited these verses: )" When the heaven burst asunder" and" Read in the name of Thy Lord" (al-Qur'an, xcvi. 1).