Sahih Muslim 4241
صحيح مسلم#4241SahihAbu Heraira reported Allah's Messenger (ﷺ) as saying:Do not take vows, for a vow has no effect against Fate; it is only from the miserly that something is extracted
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: 26:7