Cooperating with the bank for a commission

Q 4: What is the ruling on dealing with a bank on a commission basis in return for bringing clients to deposit their money in the bank on interest basis? What is the ruling on the bank employees who (Part No. 13; Page No. 346) calculate and register the amount of commission without participating in the process itself?

A: Dealing with Riba-based banks (banks dealing in usury and interest) by receiving commissions in return for bringing clients, who deposit their money in return for taking a percentage of their deposited money as interest, for example, is clearly unlawful. Also, carrying out any task related to this dealing, such as calculating or registering the amount of the commission, or counting, delivering, or receiving the money, is prohibited because it involves cooperation in sins and transgression. May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.