أَقِمِ ٱلصَّلَوٰةَ لِدُلُوكِ ٱلشَّمْسِ إِلَىٰ غَسَقِ ٱلَّيْلِ وَقُرْءَانَ ٱلْفَجْرِ ۖ إِنَّ قُرْءَانَ ٱلْفَجْرِ كَانَ مَشْهُودًا

Establish prayer at the decline of the sun [from its meridian] until the darkness of the night1 and [also] the Qur’ān [i.e., recitation] of dawn.2 Indeed, the recitation of dawn is ever witnessed.

Al-Isra 78