Surah 91 · Makki · 15 Ayahs
The Sun
الشمسDistinguishes the path of moral purification from the path of corruption, warning through the story of Thamud of the ruin that follows insisting on the latter.

By the sun and its brightness
And [by] the moon when it follows it
And [by] the day when it displays it
And [by] the night when it covers [i.e., conceals] it
And [by] the sky and He who constructed it
And [by] the earth and He who spread it
And [by] the soul and He who proportioned it
And inspired it [with discernment of] its wickedness and its righteousness,
He has succeeded who purifies it,
And he has failed who instills it [with corruption].
Thamūd denied [their prophet] by reason of their transgression,
When the most wretched of them was sent forth.
And the messenger of Allāh [i.e., Ṣāliḥ] said to them, "[Do not harm] the she-camel of Allāh or [prevent her from] her drink."
But they denied him and hamstrung her. So their Lord brought down upon them destruction for their sin and made it equal [upon all of them].
And He does not fear the consequence thereof.