Surah Al-Hijr 15:8

مَا نُنَزِّلُ ٱلْمَلَـٰٓئِكَةَ إِلَّا بِٱلْحَقِّ وَمَا كَانُوٓا۟ إِذًا مُّنظَرِينَ

We do not send down the angels except with truth; and they [i.e., the disbelievers] would not then be reprieved.

Translation: Saheeh International

Tafsir

God exalted be He says The angels do not descend tanazzalu one of the two tā’ letters of tatanazzalu has been omitted save with the truth with the chastisement; and then that is upon the descent of the angels with the chastisement they the disbelievers would not be reprieved would not be granted respite.

Excerpt from Tafsir al-Jalalayn, commentary on 15:8, via Quran.com. The reader has the full commentary and 9 more tafsirs.