Sahih Bukhari · Hadith 6999

حدثنا مسلم، حدثنا شعبة، عن محمد بن زياد، عن أبي هريرة رضى الله عنه عن النبي صلى الله عليه وسلم قال ‏"‏ العجماء عقلها جبار، والبئر جبار، والمعدن جبار، وفي الركاز الخمس ‏"‏‏.‏

Narrated Abu Huraira: The Prophet said, "There is no Diya for a person injured or killed by an animal (going about without somebody to control it) and similarly, there is no Diya for the one who falls and dies in a well, and also the one who dies in a mine. As regards the Ar-Rikaz (buried wealth), one-fifth thereof is for the state."

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).