Sunan at-Tirmithiy كتاب الزكاة باب ما جاء أن العجماء جرحها جبار وفى الركاز الخمس

حَدَّثَنَا قُتَيْبَةُ حَدَّثَنَا اللَّيْثُ بْنُ سَعْدٍ عَنِ ابْنِ شِهَابٍ عَنْ سَعِيدِ بْنِ الْمُسَيَّبِ وَأَبِى سَلَمَةَ عَنْ أَبِى هُرَيْرَةَ عَنْ رَسُولِ اللَّهِ صلى الله عليه وسلم قَالَ الْعَجْمَاءُ جُرْحُهَا جُبَارٌ وَالْمَعْدِنُ جُبَارٌ وَالْبِئْرُ جُبَارٌ وَفِى الرِّكَازِ الْخُمْسُ. قَالَ وَفِى الْبَابِ عَنْ أَنَسِ بْنِ مَالِكٍ وَعَبْدِ اللَّهِ بْنِ عَمْرٍو وَعُبَادَةَ بْنِ الصَّامِتِ وَعَمْرِو بْنِ عَوْفٍ الْمُزَنِىِّ وَجَابِرٍ. قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ.
The Messenger of God, peace and blessings of God be upon him, said, "Injuries sustained by animals are non-compensable (1), and those at mines and wells are non-compensable (2), and from buried treasures, [give away] a fifth (3)." Footnotes: 1. Only if that was during daytime or if they were unattended, otherwise their owner is liable for any damage they bring about. 2. If a person was employed to dig up a mine or well, and it accidently collapses killing him, his employer will not be liable for his death. This also applies if a person accidently falls in a well. 3. i.e. as prescribed alms. Mined metals, however, do not belong to this category. Click on ḥadīth to read more