The Book Pertaining to the Oath, for Establishing the Responsibility of Murders, Fighting, Requital and Blood-Wit (Kitab Al-Kitab Al-Qasama wa'l-Muharaba wa'l-Qisas wa'l-Diyat)
Muslim :: Book 16 : Hadith 4146
Safwan b. Ya'la reported that a person bit the arm of the servant of Ya'la b. Munya. He pulled it and his foretooth fell. The matter was referred to Allah's Apostle (may peace be upon him) and he turned it down and said: Did you intend to bite his hand, as the camel bites?