The ruling on giving the money remaining from a deceased mother to a mentally ill brother

Question:
He says that he has a brother from both his mother and father, and that the brother has a debt and needs money. Their mother has passed away, and she left behind some remaining money, which is approximately two thousand riyals. The questioner asks: Is it permissible to give this money to my sister so that she can benefit from it, since it is her mother's money? And will it be counted as charity with Allah if she gives it to her mentally ill brother? This is because the deceased mother has other children besides this mentally ill brother, but they do not need this money. We asked about it, and his guardian said: Take a million from it.

Answer:
If the drowning is permitted, there is no harm; otherwise, it is obligatory to distribute it among them, and it is not permissible to keep it hidden from them. Rather, they should be informed. If they permit their poor brother to take it, there is no harm, or if they permit their poor sister, there is no harm. As for their brother taking it without their knowledge, that is not permissible. The estate