Al-Anfal - 8:57

فَإِمَّا تَثْقَفَنَّهُمْ فِي الْحَرْبِ فَشَرِّدْ بِهِم مَّنْ خَلْفَهُمْ لَعَلَّهُمْ يَذَّكَّرُونَ
[8:57]
Therefore if you overtake them in fighting, then scatter by (making an example of) them those who are in their rear, that they may be mindful.
If ye gain the mastery over them in war, disperse, with them, those who follow them, that they may remember.
If thou comest on them in the war, deal with them so as to strike fear in those who are behind them, that haply they may remember.