The concept is used five times in the Quran, notably in the following verse: When Musa arrived at our appointed time and his Lord spoke to him, he said: "O Lord, reveal Yourself to me that I may behold You."
(5:68) At forklare Koranens betydning: Vi har åbenbaret advarselen (Koranen), for at du forklarer menneskene det, der er nedsendt til dem og for at de måtænke efter.