Surah An-Najm 53:1
وَٱلنَّجْمِ إِذَا هَوَىٰ
By the star when it descends,
Translation: Saheeh International
Tafsir
By the Star — the constellation Pleiades al-thurayya — when it sets when it disappears
Excerpt from Tafsir al-Jalalayn, commentary on 53:1, via Quran.com. The reader has the full commentary and 9 more tafsirs.