Safwan bin Abdullah narrates from his two paternal uncles, Sayyiduna Ya'la and Sayyiduna Salamah (may Allah be pleased with them both), the sons of Umayyah, that they said: We set out with the Messenger of Allah (peace and blessings be upon him) on the expedition of Tabuk, and with us was a companion of ours. He got into a fight with a man, who bit my companion on the arm. My companion pulled his arm forcefully out of his mouth, and the biter's two front teeth broke and fell out. That man came to the Messenger of Allah (peace and blessings be upon him) seeking blood money (diyah), and he (peace and blessings be upon him) said: "Does one of you go to his brother and bite him the way a stallion bites, and then after that come seeking blood money?! Go, there is no blood money for you." So the Messenger of Allah (peace and blessings be upon him) declared that claim void.