سورة Al-A'raf (The Heights ) - الآية 73

And We sent Saleh to the tribe of Thamud, from their own community; he said, “O my people! Worship Allah – you do not have any God except Him; indeed a clear proof has come to you from your Lord; this is Allah’s she-camel – a sign for you – so leave her free to feed in Allah’s earth, and do not touch her with evil intentions for a painful punishment will seize you.”