The Holy Quran 21:33 — Surah Al-Anbya
Arabic text
وَهُوَ ٱلَّذِى خَلَقَ ٱلَّيْلَ وَٱلنَّهَارَ وَٱلشَّمْسَ وَٱلْقَمَرَ ۖ كُلٌّ فِى فَلَكٍ يَسْبَحُونَ
Translation
It is Allaah Who created the night, the day, the sun and the moon, each swimming in its own orbit (never straying from its orbit and never crossing the orbit of the other).
Tafsir (excerpt) — Tafsir Usmani
this is a somewhat more detailed account of those same heavenly signs. The celestial bodies swimming in space: that is, the sun, the moon and indeed every celestial body is revolving in its own orbit. From the word يَسْبَحُوْنَ (“they swim”) it outwardly appears that the celestial bodies move by themselves, by the command of Allah. And Allah knows best.
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