Sahih Muslim 5350
صحيح مسلم#5350SahihA'isha reported Allah's Apostle (ﷺ) as saying:The best of condiments or condiment is vinegar
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: 36:224