Abu Bakr bin Muhammad narrates from his father, from his grandfather: When the Prophet (peace and blessings of Allah be upon him) sent him to Yemen, he wrote to him in a letter: "When the nose is cut off from the bone, full blood money (diyah) is obligatory for it; for the eye (if lost), half blood money is obligatory; for the foot, half blood money is obligatory; for a wound reaching the body cavity (jaifah), one third blood money is obligatory; for a wound reaching the membrane of the brain (mamumah), one third blood money is obligatory; for a wound with a displaced bone (munqilah), the payment of fifteen camels is obligatory; for a wound exposing the bone (mudiha), the payment of fifteen camels is obligatory; from here to there (for each of the fingers), the blood money for each is ten camels."