Surah Al-Hashr, Verse 14

لَا يُقَٰتِلُونَكُمۡ جَمِيعًا إِلَّا فِي قُرٗى مُّحَصَّنَةٍ أَوۡ مِن وَرَآءِ جُدُرِۭۚ بَأۡسُهُم بَيۡنَهُمۡ شَدِيدٞۚ تَحۡسَبُهُمۡ جَمِيعٗا وَقُلُوبُهُمۡ شَتَّىٰۚ ذَٰلِكَ بِأَنَّهُمۡ قَوۡمٞ لَّا يَعۡقِلُونَ١٤

lā yuqātilūnakum jamīʿan illā fī quran muḥaṣṣanatin aw min warāi judurin basuhum baynahum shadīdun taḥsabuhum jamīʿan waqulūbuhum shattā dhālika bi-annahum qawmun lā yaʿqilūna

They will not fight you all except within fortified cities or from behind walls. Their violence [i.e., enmity] among themselves is severe. You think they are together, but their hearts are diverse. That is because they are a people who do not reason.