And to Thamud (people, We sent) their brother Salih (Saleh). He said: "O my people! Worship Allah! You have no other Ilah (God) but Him. (La ilaha ill-Allah: none has the right to be worshipped but Allah). Indeed there has come to you a clear sign (the miracle of the coming out of a huge she-camel from the midst of a rock) from your Lord. This she-camel of Allah is a sign unto you; so you leave her to graze in Allah's earth, and touch her not with harm, lest a painful torment should seize you.