وَمِنَ اللَّيْلِ فَسَبِّحْهُ (And, in parts of night too, proclaim His purity, and at setting of the stars...At-Tur 52:49 ⧉) 'Proclaiming the purity of the Lord in parts of night' includes Maghrib and ` Isha' prayers, as well as the general tasbihat (proclamation of the purity of the Lord). The concluding part of this verse At-Tur 52:49 ⧉; "...and at setting of the stars" refers to the Fajr prayer and the tasbihat recited at that time. (Ibn Kathir)
Alhamdu1i11ah