2:74
ثُمَّ قَسَتْ قُلُوبُ كُم مِّنۢ بَعْدِ ذَٰلِكَ فَ هِىَ كَ ٱلْ حِجَارَةِ أَوْ أَشَدُّ قَسْوَةً وَ إِنَّ مِنَ ٱلْ حِجَارَةِ لَ مَا يَتَفَجَّرُ مِنْ هُ ٱلْ أَنْهَٰرُ وَ إِنَّ مِنْ هَا لَ مَا يَشَّقَّقُ فَ يَخْرُجُ مِنْ هُ ٱلْ مَآءُ وَ إِنَّ مِنْ هَا لَ مَا يَهْبِطُ مِنْ خَشْيَةِ ٱللَّهِ وَ مَا ٱللَّهُ بِ غَٰفِلٍ عَ مَّا تَعْمَلُ ونَ
Then your hearts became hardened after that, being like stones or even harder. For indeed, there are stones from which rivers burst forth, and there are some of them that split open and water comes out, and there are some of them that fall down for fear of Allah. And Allah is not unaware of what you do.