Sahih Muslim 6643
صحيح مسلم#6643SahihAbu Huraira reported Allah's Messenger (ﷺ) as saying:The strong-man is not one who wrestles well but the strong man is one who controls himself when he is in a fit of rage
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: 45:140