The answer: If the endower stipulates compensation for him, then yes. If he does not stipulate it, the administrator is entitled to the customary wage, as assessed by the judge. But if he serves voluntarily—may Allah reward him well—then he has assisted in a good cause.
If he endows something to his children, or to the children of another, and then to the poor, it belongs to his children, males and females alike, in equal shares.
His statement, “If he endows something to his children, or to the children of another, and then to the poor, it belongs to his children, males and females alike, in equal shares”: As for males, it is clear that the term “children” applies to them. As for females, the term “children” applies to them as well. The proof is the saying of Allah Most High: “Allah instructs you concerning your children: for the male, what is equal to the share of two females.” [al-Nisāʾ 4:11] Thus, He included the female among the children.
Therefore, if he says, “This is an endowment for my children,” and he has sons and daughters, the endowment is divided equally between the males and females. If the son says to the daughter, “You are not a child; rather, you are a daughter, whereas I am the child,” we say to him: In the Arabic language, the meaning conveyed by “child” includes both male and female; thus, males and females are equal in this regard.
If his children become extinct, by dying without leaving anyone behind, then to whom does the endowment belong?
The author says, “and then to the poor.” Thus, the endowment belongs to the poor, because the children have died out and left no descendants. Once it passes to the poor, its administration belongs to the judge, if the endower did not appoint an administrator.
His statement, “or to the children of another”: if he endows something to the children of so-and-so, then it belongs equally to his sons and daughters; and if they die out, then it belongs to the poor.
If he were to say, “I have endowed it to my children, and then to the mosques,” then the endowment belongs to his children; and if they die out, it belongs to the mosques.