When the enemy's cavalry, commanded by KHALID-VALID, were dashing forward through the gaps in the passes, where Muslim archers should have been; attacked from the rear; those who were chasing the enemy and engaged in collecting booty. They were struck with astonishment, and severely confused, and in a state of panic they scattered here and there, and some of them tried to gain the hills. They had a double loss of being balked of their prey which was the booty, and also having their own lives, and the lives of their whole army endangered! The Muslims, who were running in panic, had hardly time to think of anything other than their own life, and hence the verse: ``When you were going up (the hills in panic) and the Messenger was calling you from behind, (but none of you listened to his call, nor took notice of him) therefore grief upon grief smote and seized you, to tell you not to be anxious for the booty you lost or for the wounds that touched you.''