Question: A Muslim businessman has been offered a golden opportunity to sell equipment and food or to sign a contract to do maintenance on vehicles and equipment for an army that is waging war against the Muslims. What is the ruling on doing such business?. Answer: Praise be to Allaah. The scholars of Islam have stated that it is not permitted to support the kaafirs against the Muslims, and that that is kufr (disbelief) and riddah (apostasy), because Allaah says (interpretation of the meaning): “O you who believe! Take not the Jews and the Christians as Awliyaa’ (friends, protectors,...