How is the estate divided when the claimed descendant is a son, and one father dies leaving a daughter?
Chapter on Sharing in Purity
Al-Mughni
Book of Inheritance Shares (Farā'id)
Primary text
If the claimant is a son and his parents die, and one parent leaves a daughter, his inheritance is divided between the son and the daughter in three shares (two for the son, one for the daughter).
Supporting text
On the other opinion, the division is by five shares, because the son is counted by the share of two sons of a son.