Al-Mulk 30

قُلْ أَرَءَيْتُمْ إِنْ أَصْبَحَ مَآؤُكُمْ غَوْرًا فَمَن يَأْتِيكُم بِمَآءٍ مَّعِينٍۭ

qul ara-aytum in aṣbaḥa māukum ghawran faman yatīkum bimāin maʿīnin

Say, "Have you considered: if your water was to become sunken [into the earth], then who could bring you flowing water?"