Kur’an 18:41 — sura Al-Kahf, 41. ajet

أَوۡ يُصۡبِحَ مَآؤُهَا غَوۡرٗا فَلَن تَسۡتَطِيعَ لَهُۥ طَلَبٗا

ili da mu voda u ponor ode pa da je ne mogneš pronaći nikada."

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