Sahih Muslim 4090
صحيح مسلم#4090SahihIbn 'Abbas; (Allah be pleased with them) reported on the authority of Usama b. Zaid Allah's Messenger (ﷺ) as having said this:There is no element of interest when the money or commodity is exchanged hand to hand
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: 22:129