Sahih Bukhari – Hadith No : 1879

A man bit the hand of another man but in that process the latter broke one incisor tooth of the former, and the Prophet forgave the latter.

Hadith In Arabic Text :

وعض رجل يد رجل يعني فانتزع ثنيته فأبطله النبي صلى الله عليه وسلم‏.‏

Chapter : Penalty of Hunting while on Pilgrimage – كتاب جزاء الصيد