أَوْ يُصْبِحَ مَآؤُهَا غَوْرًا فَلَن تَسْتَطِيعَ لَهُۥ طَلَبًا

Aw yusbiha maohaghawran falan tastateeAAa lahu talaba

Or its water will become sunken [into the earth], so you would never be able to seek it."