If retribution for life is waived, and the matter reverts to Diyah following prior severe mutilation, what is the required compensation?
Chapter on Retaliation (Qawad)
Al-Mughni
Book of Wounds
Primary text
The obligatory compensation is a single Diyah for the life. This is the apparent position of Al-Shafi'i. The rationale is that the assailant caused the death after inflicting the initial wounds, meaning the compensation for the wounds becomes subsumed under the compensation for life, similar to when the wound leads to death spontaneously. The Qisas for the limbs is not due in this instance based on one narration from Imam Ahmad; and even if it were due, Qisas and Diyah are not analogous because the wound traveling to cause death negates the specific Diyah for the limb but does not negate Qisas for the life.
Supporting text
Some scholars argued that the Diyah for the severed limbs and the Diyah for the life are both due because the subsequent death by progression of the wound makes the situation akin to the assailant being killed by another party, where the initial mutilation remains a separate liability.