Surah Al-Hajj (The Pilgrimage), Verse 61

ذٰلِكَ بِاَنَّ اللّٰهَ یُوْلِجُ الَّیْلَ فِی النَّهَارِ وَیُوْلِجُ النَّهَارَ فِی الَّیْلِ وَاَنَّ اللّٰهَ سَمِیْعٌ بَصِیْرٌ ۟

Zaalika bi annal laaha yoolijul laila fin nahaari wa yoolijun nahaara fil laili wa annal laaha Samee'um Baseer

“That is because Allah merges night into day, and He merges day into night, and verily it is Allah Who hears and sees (all things).”

Quran 22:61 (Yusuf Ali Translation)