It wasnarrated from Kathir bin Murrah that Abu Fatimah told him:
"Isaid:'O Messenger of Allah! Tell me of a deed that I can adhere toandact upon.' He said: "You should prostrate, for you will notprostrate to Allah but He will raise you in status one degree therebyand erase from you one sin." (FR)
English reference (FR): Vol. 1, Book 5, Hadith 1422 (FR)
Arabic reference (FR): Book 5, Hadith 1487 (FR)