Sahih Muslim 3813
صحيح مسلم#3813SahihAbu Huraira reported Allah's Messenger (ﷺ) as saying:A Muslim should not purchase (in opposition) to his brother
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: 21:13