What is the inheritance division for the son of the man who underwent the process of Li'an, if he leaves behind his mother and his paternal grandmother (who is the woman who underwent Li'an)?
Chapter on Distant Kindred (Dhawu al-Arham)
Al-Mughni
Book of Inheritance Shares (Farā'id)
Primary text
The mother receives one-third (Al-Thuluth) of the inheritance, and the remainder is returned to her through Radd (return). This is the position held by Ali. The evidence for the division among the shares for the mother relies on standard rules of fixed shares.
Supporting text
According to another narration, which is the position of Ibn Mas'ud, the remainder is allocated to the paternal grandmother because she functions as the male ascendant's residuary heir (Asaba) of his father. This view is criticized because a grandmother inherits alongside a mother who is senior to her.