Is it permissible for a man to compel his wife to transfer the child support payment to him, or to spend it in a way that he approves, or does she have the freedom to dispose of the portion designated for her, even if she disagrees with him on the method of spending?

If the state aid is designated for the children, then it belongs to them and should be spent on their needs, such as food, drink, clothing, schooling, medical treatment, entertainment, and their share of housing rent. Any surplus should be saved for them. The father is obligated to spend on them if the aid is insufficient, and he is entrusted with their money. It is permissible for the father to take from his child's money if he is in need of it. As for the mother, scholars differ on the permissibility of her taking from her child's money; some have prohibited it due to the unique status of the father, while others have permitted her to take, just like the father, as long as it does not harm the child or their needs. However, she does not have guardianship over her children's money if their father is present.