O you who believe! be not like those who disbelieve and say of their brethren when they travel in the earth or engage in fighting: Had they been with us, they would not have died and they would not have been slain; so Allah makes this to be an intense regret in their hearts; and Allah gives life and causes death and Allah sees what you do.

And those who disbelieve would almost smite you with their eyes when they hear the reminder, and they say: Most surely he is mad. Those who disbelieved show their ridicule in their eyes when they hear the message and say, "He is crazy!"