Sahih (Sahih al-Bukhari)
وَعَضَّ رَجُلٌ يَدَ رَجُلٍ ـ يَعْنِي فَانْتَزَعَ ثَنِيَّتَهُ ـ فَأَبْطَلَهُ النَّبِيُّ صلى الله عليه وسلم.
A man bit the hand of another man but in that process the latter broke one incisor tooth of the former, and the Prophet (ﷺ) forgave the latter