Sahih Muslim 5504
صحيح مسلم#5504SahihAbbad b. Tamim reported from his uncle that he saw Allah's Messenger (ﷺ) lying in the mosque and placing his one foot upon the other
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: 37:119