(Mu'amin) 40 : 55
فَاصْبِرْ إِنَّ وَعْدَ اللَّهِ حَقٌّ وَاسْتَغْفِرْ لِذَنْبِكَ وَسَبِّحْ بِحَمْدِ رَبِّكَ بِالْعَشِيِّ وَالْإِبْكَارِ
Then you be patient, indeed the Promise of Allah is the Truth, and you seek forgiveness for your offenses, and you glorify your Lord by praising in the dusks and dawns.
It is told in verse 7: 205 that you remember your Lord with your soul beseechingly and fearfully without loud words in the dawn and dusk, and you should not be among the heedless. See explanation 2: 152; 9: 71-72; 30: 17-18.