4:89They would love to see you disbelieve, just as they disbelieve, so you would become equal. So do not befriend any of them, unless they emigrate in the way of God. If they turn away, seize them and execute them wherever you may find them; and do not take from among them allies or supporters.

4:115Whoever makes a breach with the Messenger, after the guidance has become clear to him, and follows other than the path of the believers, We will direct him in the direction he has chosen, and commit him to Hell—what a terrible destination!