Sahih Muslim 5749
صحيح مسلم#5749SahihIbn 'Abbas reported that Allah's Apostle (ﷺ) got himself cupped and gave to the cupper his wages and he put the medicine in the nostril
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: 39:103