Surah Al-Waqi'ah, ayah 68

أَفَرَءَيۡتُمُ ٱلۡمَآءَ ٱلَّذِي تَشۡرَبُونَ ٦٨

Afara'aytumul-mā'al-ladhī tashrabūn

And have you seen the water that you drink?