قُلۡ اَرَءَيۡتُمۡ اِنۡ اَصۡبَحَ مَآؤُكُمۡ غَوۡرًا فَمَنۡ يَّاۡتِيۡكُمۡ بِمَآءٍ مَّعِيۡنٍࣖ‏

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