فَإِمّا تَثقَفَنَّهُم فِي الحَربِ فَشَرِّد بِهِم مَن خَلفَهُم لَعَلَّهُم يَذَّكَّرونَ

If you encounter them in battle, make them a fearsome example for others who follow them, so they may take heed.