What is the ruling on inheritance, and what is the share of each heir from an estate consisting of: a wife, a full brother, and 3 full sisters, in addition to money not yet received by the deceased from the sale of a property that is still in the possession of its buyer, knowing that the deceased has one wife and no children?

The deceased's share of the sale price passes to his heirs and is divided among them according to Islamic law. If the heirs are limited to those mentioned, the wife receives one-fourth due to the absence of a lineal descendant, based on the Almighty's saying: "And for them is the fourth of what you leave if you have no child." The remainder goes to the full brother and full sisters by way of ta'sib (residuary heirship), with the male receiving the equivalent of the share of two females, based on the Almighty's saying: "And if there are brothers and sisters, male and female, then for the male is the like of the share of two females." The inheritance is divided into twenty shares: the wife receives five shares, the full brother six shares, and each full sister three shares.