Sahih Muslim 4276
صحيح مسلم#4276SahihAdi b. Hatim reported Allah's Messenger (ﷺ) as saying:He who took an oath, but he found something else better than that, should do that which is better and break his oath
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: 27:23