وَجَعَلنَا اللَّيلَ وَالنَّهارَ آيَتَينِ ۖ فَمَحَونا آيَةَ اللَّيلِ وَجَعَلنا آيَةَ النَّهارِ مُبصِرَةً لِتَبتَغوا فَضلًا مِن رَبِّكُم وَلِتَعلَموا عَدَدَ السِّنينَ وَالحِسابَ ۚ وَكُلَّ شَيءٍ فَصَّلناهُ تَفصيلًا

We made the night and the day two marvels. We erased the marvel of the night, and made the marvel of the day illuminating, so that you may seek bounty from your Lord, and may know the number of years and calculations. We explained everything in detail.