The wife’s disposition of her elderly mother-in-law’s money

Question:
She is his wife and is of advanced age. She lives with her husband’s mother, and this woman disposes of this old woman’s money, who is unable to manage anything due to her advanced age, by giving charity and lending it out, with the husband’s knowledge of this. Is there any sin on her?

Answer:
It is not permissible for her or for the husband to dispose of her money while she is alive except with her permission. If she is in a state where she does not think or reason, the judge should be consulted to appoint a guardian who will preserve her money and increase it in a way that benefits her. He should not dispose of it except by order of the judge, who appoints a guardian to preserve this money and increase it in a way that benefits her and is useful to her. Yes. He should not give charity from it, but only the obligatory zakah should be paid from it. The obligatory zakah is paid, yes.