How is the inheritance distributed if a brother replaces the sister, or if there are two sisters?
Chapter on Inheritance of the Grandfather
Al-Mughni
Book of Inheritance Shares (Farā'id)
Primary text
If a brother replaces the sister, the remainder is divided between the grandfather and the brother. If there are two sisters, the remainder is divided among the grandfather, the first sister, and the second sister. When a brother is present, the initial distribution resolves to a denominator of sixteen (Tashih to sixteen). When two sisters are present, the initial distribution resolves to a denominator of thirty-two (Tashih to thirty-two).