The ruling on a sister disposing of her mentally deficient brother's money

The questioner : She says: Honorable Shaykh, she has a younger brother who is one year younger than her. She says: Okay, but he has a deficiency in his intellect. She says: We have money, me and him, and she keeps his money with her. She says: If he needs it, she gives it to him at times, and at other times he asks for some of his money, but she does not give it to him because he asks for it without need. Does she say: Is she sinful for that?

The Shaykh : First, it is invalid. She must obtain guardianship from the court over this mentally deficient person before she disposes of anything from his money. If she obtains guardianship, she disposes of his money according to what is in his interest.

The questioner : Okay, may Allah reward you with good. There is another question remaining. She says: If she borrows from his money without his knowledge, Shaykh?

The Shaykh : It is not permissible for her to borrow.

The questioner : No, my dear.

The Shaykh : The guardian, and the guardian is not permitted to borrow from the money over which he is the guardian.

The questioner : Even the father, may Allah reward you. Does the mother also fall under that, Shaykh?

The Shaykh : And likewise.