What should those who doubt that Allah will give Muhammad victory do?
The good deed and the evil deed are not alike. Repel the evil deed with one which is better, then lo! he, between whom and thee there was enmity (will become) as though he was a bosom friend. 41:34
What should those who doubt that Allah will give Muhammad victory do?
Go hang themselves
Whoso is wont to think (through envy) that Allah will not give him (Muhammad) victory in the world and the
Hereafter (and is enraged at the thought of his victory), let him stretch a rope up to the roof (of his dwelling),
and let him hang himself. 22:15