Surah At-Takwir 81:1
إِذَا ٱلشَّمْسُ كُوِّرَتْ
When the sun is wrapped up [in darkness]
Translation: Saheeh International
Tafsir
When the sun is folded away enfolded and stripped of its light
Excerpt from Tafsir al-Jalalayn, commentary on 81:1, via Quran.com. The reader has the full commentary and 9 more tafsirs.