Surah Al-Inshiqaq 84:1

إِذَا ٱلسَّمَآءُ ٱنشَقَّتْ

When the sky has split [open]

Translation: Saheeh International

Tafsir

When the heaven is rent asunder

Excerpt from Tafsir al-Jalalayn, commentary on 84:1, via Quran.com. The reader has the full commentary and 9 more tafsirs.