It is narrated from Sayyidna Ali bin Umayyah and Salamah bin Umayyah (may Allah be pleased with them), they say: We set out with the Messenger of Allah (peace and blessings be upon him) in the expedition of Tabuk. There was another companion with us. He and another Muslim got into a fight. That man bit the other's arm, so he pulled his hand out of his mouth and his front tooth fell out. That man went to the Noble Prophet (peace and blessings be upon him) and demanded blood money. The Prophet (peace and blessings be upon him) said: One of you bites his brother like a bull and then comes to demand blood money? There is no blood money for this. The Prophet (peace and blessings be upon him) declared his claim for blood money invalid.

(Second chain) It is narrated from Sayyidna Ali bin Umayyah, may Allah be pleased with him, who says: I participated with the Noble Prophet, peace and blessings be upon him, in the army of hardship, that is, the Battle of Tabuk. This battle is among those deeds of mine on which I rely the most. I had a laborer, who got into a fight with another man. One of them bit the other, and the other pulled his finger away, causing his tooth to fall out. He went to the Noble Prophet, peace and blessings be upon him, to complain, but the Prophet, peace and blessings be upon him, said: Would he have kept his hand in your mouth and you kept chewing it like a bull?

Narrated from Sayyiduna Imran bin Husain (may Allah be pleased with him) that Ya'la bin Munyah or Ibn Umayyah had a fight with a man. One of them bit the other's hand, and to save himself, he pulled his hand away, causing one or two teeth of the biter to fall out. When both of them brought their dispute to the Prophet Muhammad (peace and blessings be upon him), he said: "Does one of you bite his brother like a bull? There is no blood money for such a person." In another narration, it is stated: The Prophet (peace and blessings be upon him) invalidated his blood money and said: "Did you want to chew your brother's flesh like a bull?"