Chapter 22, Verse 61, The Pilgrimage
سورة الحج
ذَٰلِكَ بِأَنَّ ٱللَّهَ يُولِجُ ٱلَّيۡلَ فِي ٱلنَّهَارِ وَيُولِجُ ٱلنَّهَارَ فِي ٱلَّيۡلِ وَأَنَّ ٱللَّهَ سَمِيعُۢ بَصِيرٞ
That is because Allah merges the night into the day, and He merges the day into the night. And verily, Allah is All-Hearer, All-Seer.
Chapter 37, Verse 138, Those who set the ranks
سورة الصافات
وَبِٱلَّيۡلِۚ أَفَلَا تَعۡقِلُونَ
And at night; will you not then reflect?
Chapter 44, Verse 4, The Smoke
سورة الدخان
فِيهَا يُفۡرَقُ كُلُّ أَمۡرٍ حَكِيمٍ
Therein (that night) is decreed every matter of ordainments.
Chapter 57, Verse 6, The Iron
سورة الحديد
يُولِجُ ٱلَّيۡلَ فِي ٱلنَّهَارِ وَيُولِجُ ٱلنَّهَارَ فِي ٱلَّيۡلِۚ وَهُوَ عَلِيمُۢ بِذَاتِ ٱلصُّدُورِ
He merges night into day (i.e. the decrease in the hours of the night is added into the hours of the day), and merges day into night (i.e. the decrease in the hours of the day is added into the hours of the night), and He has full knowledge of whatsoever is in the breasts.
Chapter 73, Verse 2, The enshrouded one
سورة المزمل
قُمِ ٱلَّيۡلَ إِلَّا قَلِيلٗا
Stand (to pray) all night, except a little.
Chapter 74, Verse 33, The cloaked one
سورة المدثر
وَٱلَّيۡلِ إِذۡ أَدۡبَرَ
And by the night when it withdraws,
Chapter 76, Verse 26, The man
سورة الإنسان
وَمِنَ ٱلَّيۡلِ فَٱسۡجُدۡ لَهُۥ وَسَبِّحۡهُ لَيۡلٗا طَوِيلًا
And during night, prostrate yourself to Him (i.e. the offering of Maghrib and 'Isha' prayers), and glorify Him a long night through (i.e. Tahajjud prayer).
Chapter 81, Verse 17, The Overthrowing
سورة التكوير
وَٱلَّيۡلِ إِذَا عَسۡعَسَ
And by the night as it departs;
Chapter 89, Verse 4, The Dawn
سورة الفجر
وَٱلَّيۡلِ إِذَا يَسۡرِ
And by the night when it departs.
Chapter 92, Verse 1, The night
سورة الليل
وَٱلَّيۡلِ إِذَا يَغۡشَىٰ
By the night as it envelops;