8:57
فَإِمَّا تَثْقَفَنَّهُمْ فِى ٱلْحَرْبِ فَشَرِّدْ بِهِم مَّنْ خَلْفَهُمْ لَعَلَّهُمْ يَذَّكَّرُونَ
fa-immā tathqafannahum fī l-ḥarbi fasharrid bihim man khalfahum laʿallahum yadhakkarūna
If you meet them in battle, make a fearsome example of them to those who come after them, so that they may take heed.
So if you gain the mastery over them in war, punish them severely in order to disperse those who are behind them, so that they may learn a lesson.