Surah Al-Fajr 89:4
وَٱلَّيْلِ إِذَا يَسْرِ
And [by] the night when it passes,
Translation: Saheeh International
Tafsir
and by the night in motion falling or receding
Excerpt from Tafsir al-Jalalayn, commentary on 89:4, via Quran.com. The reader has the full commentary and 9 more tafsirs.