Ibn Abbas reported that the Messenger of Allah (ﷺ) 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.
Reference: Sahih Muslim 490 d In-book : Book 4, Hadith 260 USC-MSA web (English) : Book 4, Hadith 994 (deprecated)
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