The Coalition - 33:16
"Say, "Fleeing from death or war will not benefit you. Even if you flee, you will not live long."
The punishment of those who flee in battle:
The Spoils of War/8:16
Whoever on that Day turns his back and runs away except as a tactic of war or to join another unit, has incurred the wrath of Allah and his abode is Hell. What an evil abode.