Surah An-Nazi'at 79:28

Those who drag forth · Verse 28 of 46 · Juz 30 · Page 584

رَفَعَ سَمْكَهَا فَسَوَّىٰهَا

He raised its ceiling and proportioned it.

Translation: Saheeh International

Tafsir

He made it rise high — an explication of the manner of its construction; in other words He made its vertical extension high; it is also said that samkahā means ‘its ceiling’ — and levelled it He made it even flawless

Excerpt from Tafsir al-Jalalayn, commentary on 79:28, via Quran.com. The reader has the full commentary and 9 more tafsirs.