Is it permissible for a son to open a bank account in his father's name to transfer some of his own money to it, knowing that his father deals with Riba (usury or interest), and is it permissible for him to take interest from this account?

This issue involves the ruling on dealing with an interest-based bank, taking or giving interest to the bank, and using deception to nullify the rights of others and to circumvent the freezing of funds. This deception is forbidden, for the Prophet, peace and blessings be upon him, said: "Whoever takes people's money with the intention of repaying it, Allah will repay it for him; and whoever takes it with the intention of destroying it, Allah will destroy him."

However, if the deception is merely to avoid paying interest due to the bank according to man-made laws, then the person must do their utmost not to pay these forbidden interests. As for the principal amount, it is not permissible to use deception to avoid it.

Obedience to one's father is obligatory in matters that do not involve disobedience to Allah. In matters of disobedience, there is no obedience, for the Prophet, peace and blessings be upon him, said: "Indeed, obedience is only in what is good."