It is narrated from Sayyiduna Imran bin Husayn (may Allah be pleased with him) that a man bit another on his forearm, so he pulled it away and knocked out his front tooth. The matter was taken to the Prophet (peace and blessings be upon him), and he (peace and blessings be upon him) declared it void and said: "Did you want to bite your brother's flesh the way a male camel bites?"
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 15623