Sahih Muslim 5558
صحيح مسلم#5558SahihAnas b. Malik reported:I saw in the hand of Allah's Messenger (ﷺ) an instrument for cauterisation and he was cauterising the caracia collected as Zakat
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: 37:168