What is the ruling on subsequent amputations to an already injured limb that results in the victim's death?
Chapter on Retaliation (Qawad)
Al-Mughni
Book of Wounds
Primary text
If a man's hand is cut off at the elbow joint (kū'ah), and another person subsequently cuts it off above that point at the forearm (mirfaq), causing death due to the resulting spread of injury (sarāyah), the victim's guardian (wali) has the right to execute both perpetrators. One scholarly view holds that the guardian cannot execute the second cutter's corresponding hand in retribution (qisās). A second view permits the execution of the hand of the first cutter, specifically the one cut from the elbow.
Supporting text
If the first cutter's hand was amputated, and the victim's guardian pardons this action, only half the standard blood money (diyah) is due. Concerning the second cutter whose action resulted in death: if the first cutter's hand was already removed at the elbow and the second cut it at the forearm, and the guardian pardons the second act, the full diyah is due, minus the assessed value (hukūmah) of the forearm.