Sahih Muslim 4042
صحيح مسلم#4042SahihIbn 'Abbas (Allah be pleased with them) reported:The slave of Banu Bayada cupped Allah's Apostle (ﷺ) and he gave him his wages, and talked to his master and he reduced the charges, and if this earning was unlawful Allah's Apostle (ﷺ) would not have given it
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: 22:81