What is the ruling on companies that act as intermediaries for purchasing goods and products in installments from the bank, when they do not have an installment system and do not take a financial return from the customer?

If a bank lends a usurious loan, it is not permissible to mediate in this transaction, even without financial compensation. This is because it involves condoning an evil and assisting in sin. Allah Almighty says: {And do not cooperate in sin and aggression.} The Messenger of Allah, peace and blessings be upon him, cursed the one who consumes usury, the one who feeds it, its scribe, and its two witnesses, and he said: "They are all alike"; because their actions are considered assistance in usury. And whoever assists in disobedience is considered sinful, and bears a burden of sin equal to that of the one who commits it.