question #3 Sahih al-Bukhari 2512, Book 48, Hadith 5 : How does the concept of expenditure relate to the use of a mortgaged animal in Islamic teachings?

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 spend on it. The one who rides the animal or
drinks its milk should provide the expenditures.”