Surah Al-Haqqah, Ayah 16
Quran 69:16 · The Reality · Makki · Para 29 · Page 568
وَانْشَقَّتِ السَّمَآءُ فَهِیَ یَوْمَىِٕذٍ وَّاهِیَةٌ ۟ۙ
Transliteration
Wanshaqqati assamaofahiya yawma-ithin wahiya
Saheeh International
And the heaven will split [open], for that Day it is infirm.
Al-Mukhtasar fi Tafsir
And the sky will crack open on that day because of the angels descending from it. So on that day it will be weak, whereas it was once solid and unyielding.
Tafsir Ibn Kathir (abridged)
Explains 69:13–69:18 together — read it on 69:13