Sunan an-Nasai 19512
In-book no 4776أَخْبَرَنَا عَبْدُ الْجَبَّارِ بْنُ الْعَلاَءِ بْنِ عَبْدِ الْجَبَّارِ، عَنْ سُفْيَانَ، عَنْ عَمْرٍو، عَنْ عَطَاءٍ، عَنْ صَفْوَانَ بْنِ يَعْلَى، عَنْ أَبِيهِ، أَنَّ رَجُلاً، عَضَّ يَدَ رَجُلٍ فَانْتُزِعَتْ ثَنِيَّتُهُ فَأَتَى النَّبِيَّ صلى الله عليه وسلم فَأَهْدَرَهَا .
It was narrated from Safwan bin Ya'la, from his father, that: a man bit the hand of another man and his front tooth fell out. He came to the Prophet but he considered it in vain.