(44) باب أَعْضَاءِ السُّجُودِ وَالنَّهْىِ عَنْ كَفِّ الشَّعْرِ، وَالثَّوْبِ، وَعَقْصِ الرَّأْسِ، فِي الصَّلاَة
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. (ID)
Reference (ID): Sahih Muslim 490 d (ID)
In-book reference (ID): Book 4, Hadith 260 (ID)
USC-MSA web (English) reference(deprecated numbering scheme): Book 4, Hadith 994 (ID)