Sahih Muslim 4465
صحيح مسلم#4465SahihAbu Huraira reported Allah's Messenger (ﷺ) as saying:No requital is payable for a wound caused by an animal, for (falling into) a well and a mine, and one-fifth (is the share of the government) in the buried treasure (treasure-trove)
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: 29:68