What is the ruling on the actions of a father who takes his wife's salary with her consent, without her knowing that he is buying on credit, then marries another woman, mistreats his first wife and children, takes their money, refuses to pay his debts, and assaults his elderly father?

A father is not permitted to take his wife's or children's money without their willing consent. It is forbidden for him to abuse them through beating or cursing. He is obligated to provide for his wife's maintenance and housing. The children, in turn, must advise him, treat him kindly, and obey him in what is good. It is permissible to prevent the father from oppressing the mother, and the mother may report his actions to the relevant authorities, all while supplicating for his guidance and repentance.