Sahih Muslim 5271
صحيح مسلم#5271SahihAbu Sa'id (Khudri) reported that Allah's Messenger (ﷺ) forbade from turning the waterskins upside down and drinking from its mouth
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: 36:145