Division and sedition in the Muslim community

لَا يَزَالُ بُنْيَـٰنُهُمُ ٱلَّذِى بَنَوْا۟ رِيبَةً فِى قُلُوبِهِمْ إِلَّآ أَن تَقَطَّعَ قُلُوبُهُمْ ۗ وَٱللَّهُ عَلِيمٌ حَكِيمٌ

Their building which they built will not cease to be a [cause of] skepticism in their hearts until their hearts are cut [i.e., stopped]. And Allāh is Knowing and Wise.