Who inherits a deceased person who was not married and had no children, but has relatives such as the children of his deceased sister, the daughter of his deceased brother, the son of his paternal half-cousin, the children of his father's paternal uncles, and the children of the children of his father's paternal uncles? And what is the share of each heir?

The estate of the deceased is inherited by the son of his paternal uncle's son because he is the closest male agnate ('asabah), and there is no sharer (dhawu al-furud) among the relatives mentioned, according to the hadith: "Give the prescribed shares to those who are entitled to them, and whatever remains is for the nearest male." This applies if the son of the paternal uncle's son is a full brother or a half-brother through the father. Otherwise, the heirs would be the closest male relatives who are full brothers or half-brothers through the father, who are the sons of the father's paternal uncles. If they are not present, then the sons of the sons of the father's paternal uncles. The matter of estates must be referred to the Sharia courts for investigation, as there may be other heirs, bequests, debts, or rights that take precedence over the right of the heirs.