What is the ruling on the interest added by the usurious bank to the original amount deposited by the father in his son's name, and is this interest considered the son's right? What should the son do if this interest is forbidden, and his family refuses to dispose of it, and should he give them this interest to avoid problems and severing ties of kinship?

These benefits are forbidden usury (riba); it is not permissible to possess them or to transfer their ownership to your relatives. They must be spent on the welfare of Muslims, such as aiding the poor and building hospitals. It is not permissible to obey your mother or brothers in possessing these benefits, because "there is no obedience to a creature in defiance of God," especially concerning usury, against which God has declared war on those who consume it: "O you who have believed, fear Allah and give up what remains [due to you] of usury, if you should be believers. And if you do not, then be informed of a war [against you] from Allah and His Messenger." Try to convince them, seeking help from Allah and righteous people. If they do not respond, do not obey them, for "And whoever fears Allah – He will make for him a way out And will provide for him from where he does not expect." "Whoever angers people to gain Allah's pleasure, Allah will spare him the burden of people."