Sahih Muslim 5742
صحيح مسلم#5742SahihJabir reported that he visited Muqanna' and then said:I will not go away unless you get yourself cupped, for I heard Allah's Messenger (ﷺ) say: It is a remedy
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: 39:96