divine wisdom in warfare

فَإِمَّا تَثْقَفَنَّهُمْ فِى ٱلْحَرْبِ فَشَرِّدْ بِهِم مَّنْ خَلْفَهُمْ لَعَلَّهُمْ يَذَّكَّرُونَ

So if you, [O Muḥammad], gain dominance over them in war, disperse by [means of] them those behind them that perhaps they will be reminded.

مَا كَانَ لِنَبِىٍّ أَن يَكُونَ لَهُۥٓ أَسْرَىٰ حَتَّىٰ يُثْخِنَ فِى ٱلْأَرْضِ ۚ تُرِيدُونَ عَرَضَ ٱلدُّنْيَا وَٱللَّهُ يُرِيدُ ٱلْـَٔاخِرَةَ ۗ وَٱللَّهُ عَزِيزٌ حَكِيمٌ

It is not for a prophet to have captives [of war] until he inflicts a massacre [upon Allāh's enemies] in the land. You [i.e., some Muslims] desire the commodities of this world, but Allāh desires [for you] the Hereafter. And Allāh is Exalted in Might and Wise.