The Qur’an teaches Muslims how to treat the non-fighting infidels: “If one of the idol worshipers sought safe passage with you, you shall grant him safe passage, so that he can hear the word of God, then send him back to his place of security. That is because they are people who do not know.” (Qur’an, 9:6), this is the teachings of Quran, which ISIL turned deaf with, once they dealt with the Yazidi in Iraq and many other religious groups.