Quran 21:20 from Surah Al-Anbiyaa on Divine Marvels.
يُسَبِّحُونَ ٱلَّيۡلَ وَٱلنَّهَارَ لَا يَفۡتُرُونَ
English translation: They glorify (Him) [the] night and [the] day not they slacken
Transliteration: yusabbihuna al-layla wal-nahara la yafturuna