هُوَ الَّذِيْ جَعَلَ الشَّمْسَ ضِيَاۤءً وَّالْقَمَرَ نُوْرًا وَّقَدَّرَهٗ مَنَازِلَ لِتَعْلَمُوْا عَدَدَ السِّنِيْنَ وَالْحِسَابَۗ مَا خَلَقَ اللّٰهُ ذٰلِكَ اِلَّا بِالْحَقِّۗ يُفَصِّلُ الْاٰيٰتِ لِقَوْمٍ يَّعْلَمُوْنَ ( يونس: ٥ )
Huwal lazee ja'alash shamsa diyaaa'anw walqamara nooranw wa qaddarahoo manaaz zila lita'lamoo 'adadas sineena walhisaab; maa khalaqal laahu zaalika illa bilhaqq; yufassilul aayaati liqawminw ya'lamoon (al-Yūnus 10:5)
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]. Allah has not created this except in truth. He details the signs for a people who know. (Yunus  : 5)
1 Mufti Taqi Usmani
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.