Book 41: Types of Blood-Wit (Kitab Al-Diyat)

Narrated Safwan b. Ya'la: On this father's authority, said: A servant of mine fought with a man and bit his hand and he drew away his hand. (One of) his front teeth fell out. So he came to the Prophet (ﷺ) who imposed no retaliation for his tooth, saying: Do you intend that he leaves his hand in your mouth so that you crunch it like a male camel ? He said: Ibn Abi Mulaikah told me on the authority of his grandfather that Abu Bakr (ra) imposed no retaliation on him for it, saying: May his tooth go away!

The tradition mentioned above has also been transmitted by Ya'la b. Umayyah through a different chain of narrators. This version has: The Prophet (ﷺ) said to the man bit him: If you wish that you give him control over your hand and he bites it, and then you drive it away from his mouth (you may do it). He imposed no retaliation for his teeth.