At-Tur 52:49
وَمِنَ ٱلَّيْلِ فَسَبِّحْهُ وَإِدْبَـٰرَ ٱلنُّجُومِ
Wamina allayli fasabbihhu wa-idbaraannujoom
And in a part of the night exalt Him and after [the setting of] the stars.
And, in parts of night too, proclaim His purity, and at the time of setting of the stars.