The fixed shares stipulated in the Qurʾān are six: the half, the quarter, the eighth, the two-thirds, the third, and the sixth.
Book of Inheritance Shares — Preface
The fixed shares stipulated in the Qurʾān are six: the half, the quarter, the eighth, the two-thirds, the third, and the sixth.
And those entitled to them are twelve: four of the men, and eight of the women.
As for the men: 1) the father, 2) the grandfather, 3) the uterine brother, 4) the husband.
As for the women: 1) the mother, 2) the grandmother, 3) the daughter, 4) and the son’s daughter, 5) the full sister 6) or paternal half-sister 7) or uterine half-sister 8) the wife.
1.
As for the father: 1) for him is the sixth with the son or the son’s son.
2) And he becomes residuary (taʿṣīb) when there is no child nor child’s child.
3) And both [take the sixth] with the daughter and the son’s daughter.
2.
And the grandfather in his rulings is as the father.
3.
And the brother by the mother: 1) for him is the sixth; 2) and for two upwards is the third.
4.
And the husband: 1) for him is the half when there is no child nor child’s child; 2) and the quarter with one of them.
5.
And the mother: 1) for her is the sixth with the child and child’s child, or two or more brothers and sisters upwards from whatever line they may be; 2) and the third when none of those are present; 3) and one-third of what remains in two cases, namely: husband and two parents, or wife and two parents; and were the father replaced by a grandfather, for her is the full third in the soundest view.
6.
And the grandmother: the mother’s mother and the father’s mother— for her is the sixth, whether one or more.
7.
1) And for the single daughter is the half; 2) and for two upwards are the two-thirds.
8.
Likewise the son’s daughter when there is no lineal daughter; and for her, one or more, with the lineal daughter, the sixth completing the two-thirds.
9.
And the full sister: 1) for her is the half; 2) and for two upwards are the two-thirds.
10.
And the paternal half-sister likewise when there is no full sister; and for her, whether one or more, with the full sister, the sixth completing the two-thirds.
11.
And the uterine half-sister is as the uterine brother: their males and females are equal in entitlement and division.
12.
And the wife: 1) for her is the quarter when there is no child nor child’s child, whether one or more; 2) and the eighth with one of them.