Yunus 10:5

Huwa allathee jaAAala ashshamsadiyaan walqamara nooran waqaddarahu manazilalitaAAlamoo AAadada assineena walhisabama khalaqa Allahu thalika illa bilhaqqiyufassilu al-ayati liqawmin yaAAlamoon

It is He who made the sun a shining light and the moon a derived light and determined for it phases - that you may know the number of years and account [of time]. Allāh has not created this except in truth. He details the signs for a people who know.

He is the One who has made the sun a glow, and the moon a light, and determined for it stages, so that you may learn the number of the years, and the calculation (of time). Allah has not created all this but for a rightful purpose. He elaborates the signs for a people who understand.