Sahih al-Bukhari 2284
صحيح البخاري#2284SahihNarrated Ibn `Umar:The Prophet (ﷺ) forbade taking a price for animal copulation
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 37:24