Al-Baqarah 74

ثُمَّ قَسَتْ قُلُوبُكُم مِّنۢ بَعْدِ ذَٰلِكَ فَهِىَ كَٱلْحِجَارَةِ أَوْ أَشَدُّ قَسْوَةً ۚ وَإِنَّ مِنَ ٱلْحِجَارَةِ لَمَا يَتَفَجَّرُ مِنْهُ ٱلْأَنْهَـٰرُ ۚ وَإِنَّ مِنْهَا لَمَا يَشَّقَّقُ فَيَخْرُجُ مِنْهُ ٱلْمَآءُ ۚ وَإِنَّ مِنْهَا لَمَا يَهْبِطُ مِنْ خَشْيَةِ ٱللَّهِ ۗ وَمَا ٱللَّهُ بِغَـٰفِلٍ عَمَّا تَعْمَلُونَ

thumma qasat qulūbukum min baʿdi dhālika fahiya kal-ḥijārati aw ashaddu qaswatan wa-inna mina l-ḥijārati lamā yatafajjaru min'hu l-anhāru wa-inna min'hā lamā yashaqqaqu fayakhruju min'hu l-māu wa-inna min'hā lamā yahbiṭu min khashyati l-lahi wamā l-lahu bighāfilin ʿammā taʿmalūna

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 Allāh. And Allāh is not unaware of what you do.