Al-Baqarah 2:74

Thumma qasat quloobukum min baAAdi thalikafahiya kalhijarati aw ashaddu qaswatanwa-inna mina alhijarati lama yatafajjaruminhu al-anharu wa-inna minha lamayashshaqqaqu fayakhruju minhu almao wa-inna minhalama yahbitu min khashyati Allahi wamaAllahu bighafilin AAamma taAAmaloon

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.

When, even after that, your hearts were hardened, as if they were rocks, or still worse in hardness. For surely among the rocks there are some from which rivers gush forth, and there are others that crack open and water flows from them, and there are still others that fall down in fear of Allah. And Allah is not unaware of what you do.