Qur'ān 9:110 · At-Tawbah (التوبة)

لَا يَزَالُ بُنْيَـٰنُهُمُ ٱلَّذِى بَنَوْا۟ رِيبَةًۭ 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 stopped. And Allah is Knowing and Wise.