The Book of Prayers (Kitab Al-Salat)

Muslim :: Book 4 : Hadith 994

Ibn Abbas reported that the Messenger of Allah (may peace be upon him) said: I have been commanded to prostrate myself on seven bones:" forehead," and then pointed with his hand towards his nose, hands, feet, and the extremities of the feet; and we were forbidden to fold back clothing and hair.

Source materials are from the University of Southern California MSA site
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