Is it permissible, Islamically, for a wife to withdraw money from her children's accounts without her husband's knowledge, or to give charity and gifts without his knowledge, due to his seizure of her bank card and his prevention of her from managing her own money?

It is not permissible for a husband to prevent his wife from disposing of her own money as long as she is an adult, of sound mind, and not foolish, insane, or mad. A woman has the right to own and dispose of her money. If the husband insists on preventing her, the wife is permitted to take from the husband's money an amount equal to the money she was prevented from accessing, without exceeding it. A mother does not have the right to take her children's money except to meet her essential needs if she has no money and the husband refuses to provide for her, and she is unable to compel him to do so, because the children's money is inviolable.