Muwatta Imam Malik (Riwayat Yahya)

Imam Malik, may Allah have mercy on him, said that retaliation (qisas) for a wound should not be taken until the injured person has recovered. When he recovers, then retaliation will be taken. Now, if the wound of the assailant also heals and becomes like that of the injured, then that is better. If not, and if the wound of the assailant worsens and he dies because of it, then there will be no compensation upon the injured. If the wound of the assailant heals completely but the hand of the injured becomes paralyzed or some other defect remains, then retaliation will not be taken from the assailant, but compensation equal to the loss will be taken from him.