(28) باب الْمَعْدِنُ جُبَارٌ وَالْبِئْرُ جُبَارٌ
Narrated Abu Huraira:
Allah's Messenger (ﷺ) said, "There is no Diya for persons killed by animals or for the one who has been killed accidentally by falling into a well or for the one killed in a mine. And one-fifth of Rikaz (treasures buried before the Islamic era) is to be given to the state."
Reference: Sahih al-Bukhari 6912
In-book reference: Book 87, Hadith 50
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 9, Book 83, Hadith 47