Sahih al-Bukhari 2512
صحيح البخاري#2512SahihNarrated Abu Huraira:Allah's Messenger (ﷺ) said, "The mortgaged animal can be used for riding as long as it is fed and the milk of the milch animal can be drunk according to what one spends on it. The one who rides the animal or drinks its milk should provide the expenditures
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: 48:5