Surah Al-Anbya 21:33

وَهُوَ ٱلَّذِى خَلَقَ ٱلَّيْلَ وَٱلنَّهَارَ وَٱلشَّمْسَ وَٱلْقَمَرَ ۖ كُلٌّ فِى فَلَكٍ يَسْبَحُونَ

And it is He who created the night and the day and the sun and the moon; all [heavenly bodies] in an orbit are swimming.

Translation: Saheeh International

Tafsir

And He it is Who created the night and the day and the sun and the moon each kullun the nunation of this particle stands in place of the second noun of the genitive construction that would have been al-shams ‘the sun’ or al-qamar ‘the moon’ or their subsidiaries namely al-nujūm ‘the stars’ in an orbit a circular one …

Excerpt from Tafsir al-Jalalayn, commentary on 21:33, via Quran.com. The reader has the full commentary and 9 more tafsirs.