you make the number of their shares the base of their problem, just as the shares in a problem with 'awl (increase in the divisor) become the problem in which you multiply the number against which the shares were broken. Likewise here, if the shares are broken (non-divisible) upon a group of them, you multiply it by the number of their shares, because that becomes the base of their problem. This is confined to four bases: The first is the base of two; like a grandmother and a brother through the mother, each of them having a sixth. The base is two, then you divide the wealth between them, so each of them gets half the wealth. If there are three grandmothers, they have one share that does not divide upon them; multiply their number by the base of the problem, which is two, and it becomes six: the brother through the mother has the half, which is three, and each of them has one share. The base of three: a mother and a brother through the mother, or a mother and two brothers through the mother. If they are three, you multiply their number by the base of their problem, which is three, and it becomes nine, and from it the problem is validated. Three grandmothers and four brothers through the mother: the brothers have two shares, which is compatible with them by the half, so their number returns to two; you multiply them by the number of grandmothers, then by the base of the problem, and it becomes eighteen, and from it the problem is validated. The base of four: a sister from both parents and a sister from the father or mother, or a brother through the mother, or a grandmother. A daughter and a mother or a grandmother. A daughter and a daughter of a son; if the daughters of the son are four, you multiply them by the base of the problem, which is four, and it becomes sixteen, and from it the problem is validated. The base of five: three divided sisters; the sister from both parents has the half, the sister from the father has the sixth, and the sister from the mother has the sixth. This is the problem of al-Khiraqi: a mother and a sister from both parents or from the father. A mother, a sister from both parents, and a sister from the father or mother. The problems of radd (return) never increase beyond this, because if they increased by one share, the wealth would be completed and nothing would remain from it to be returned. Three grandmothers, a daughter, and four daughters of a son: its base is from five, and it is validated from sixty. Whenever the radd is upon a single category, it takes the entire wealth by fixed share and radd, as if it were a residuary ('asaba). If it is a single person, the wealth is for him; if it is a group, you divide it among them according to their number, like the sons and the brothers.

Section: If there is one of the spouses with them, you give him his fixed share from the base of his problem, and you divide what remains from his problem upon the fixed share of those entitled to the radd. If it is divisible, both problems are validated. This does not happen except when the spouse is a woman who has the quarter, and the problem of those entitled to the radd is from three, such as a wife, a mother, and a brother through the mother.