How is the inheritance divided when a person inherits through multiple defined kinship links, such as the son of a daughter of a daughter versus another son of a daughter of a daughter?
Chapter on Distant Kindred (Dhawu al-Arham)
Al-Mughni
Book of Inheritance Shares (Farā'id)
Primary text
If the shared ancestor is the mother, the ruling group (those who differ from the minority view) grants the son three-quarters (3/4) of the estate and his sister the remaining quarter (1/4). This is the opinion held by the majority, including Abu Hanifa and Muhammad. The minority opinion grants the son half and a third, and the sister one-sixth.
Supporting text
The ruling based on the logic of Abu Yusuf suggests the son receives four-fifths (4/5) of the estate, and the sister receives the remaining fifth (1/5).