(19, 20) باب الرَّجُلِ يَدْفَعُ عَنْ نَفْسِهِ،
It was narrated from Ya'la bin Munyah that:
a man from Banu Tamim fought with another man, and he bit his hand, so he pulled it away and a front tooth fell out. They referred the dispute to the Messenger of Allah, who said: "Would one of you bite his brother as a young camel bites?" and he thwarted it, meaning he judged it to be invalid. (DE)
Reference (DE): Sunan an-Nasa'i 4764 (DE)
In-book reference (DE): Book 45, Hadith 59 (DE)
English translation (DE): Vol. 5, Book 45, Hadith 4768 (DE)