For anything of which a person has more than that, such as the ten fingers, one-tenth of the blood money is due for each finger, and half of one-tenth is due for each tooth. If someone wounds another on the head or face so deeply that the bone becomes plainly exposed, half of one-tenth of the blood money is due. If the wound is less severe—for example, if it splits (1) the flesh—the injured person is appraised as though he were a slave, first while sound and then while wounded after his injury has healed. For the injury, he is awarded the same proportion of his blood money as the diminution in his value (2).
As for retaliation for a blow delivered with the hand, a stick, or a whip—such as slapping him (3), punching him, striking him with a stick, or the like—a group of scholars held that retaliation does not apply; rather, it warrants discretionary punishment, because exact equivalence cannot be ensured.
Another view holds that retaliation does apply. This (4) is the position transmitted from the Rightly Guided Caliphs and other Companions and Successors: retaliation is prescribed in such cases. It is also the express position of Ahmad and other jurists, and it is established by the Sunnah of the Messenger of Allah, peace and blessings be upon him. This is the correct view.
Abū Firās said: Umar ibn al-Khattab—may Allah be pleased with him—delivered a sermon. He then narrated the report, in which Umar said: “Know that, by Allah, I did not send my officials to you to beat you or seize your wealth. Rather, I sent them (5) to you to teach you your religion and the Sunnah of your Prophet (6). Anyone treated in a manner other than