A man bit another man's hand and the latter pulled his hand out of his mouth by force, causing two of his incisors (teeth) to fall out. They submitted their case to the Prophet, who said, "One of you bit his brother as a male camel bites. (Go away), there is no Diya (Blood-money) for you."
Sahih al-Bukhari Book 87, Hadith 30
← Previous Hadith We went out with the Prophet (ﷺ) to Khaibar. A man (from the companions) said, "O 'Amir! Let us hear some of your Huda (camel-driving songs.)" So he sang some of them (i.e. a lyric in harmony with the camels walk). The Prophet (ﷺ) said, "Who is the driver (of these camels)?" They said, "Amir." The Prophet said, "May Allah bestow His Mercy on him !" The people said, "O Allah's Messenger (ﷺ)! Would that you let us enjoy his company longer!" Then 'Amir was killed the following morning. The people said, "The good deeds of 'Amir are lost as he has killed himself." I returned at the time while they were talking about that. I went to the Prophet (ﷺ) and said, "O Allah's Prophet! Let my father be sacrificed for you! The people claim that 'Amir's good deeds are lost." The Prophet (ﷺ) said, "Whoever says so is a liar, for 'Amir will have a double reward as he exerted himself to obey Allah and fought in Allah's Cause. No other way of killing would have granted him greater reward."

Sahih al-Bukhari Book 87, Hadith 29 Next Hadith → I went out in one of the Ghazwa and a man bit another man and as a result, an incisor tooth of the former was pulled out. The Prophet (ﷺ) cancelled the case.

Sahih al-Bukhari Book 87, Hadith 31