Surah Al-Isra ,Verse 78

Surah Al-Isra, Verse 78:
أَقِمِ الصَّلَاةَ لِدُلُوكِ الشَّمْسِ إِلَىٰ غَسَقِ اللَّيْلِ وَقُرْآنَ الْفَجْرِ إِنَّ قُرْآنَ الْفَجْرِ كَانَ مَشْهُودًا

Perform As-Salat (Iqamat-as-Salat) from mid-day till the darkness of the night (i.e. the Zuhr, 'Asr, Maghrib, and 'Isha' prayers), and recite the Quran in the early dawn (i.e. the morning prayer). Verily, the recitation of the Quran in the early dawn is ever witnessed (attended by the angels in charge of mankind of the day and the night).