Sahih Muslim 1096
صحيح مسلم#1096SahihIbn 'Abbas reported from the Messenger of Allah (ﷺ):I was commanded to prostrate myself on seven bones and not to fold back clothing or hair
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 4:258