9. Indeed he succeeds who purifies his ownself (i.e. obeys and performs all that Allâh ordered, by following the true Faith of Islâmic Monotheism and by doing righteous good deeds).
10. And indeed he fails who corrupts his ownself (i.e. disobeys what Allâh has ordered by rejecting the true Faith of Islâmic Monotheism or by following polytheism or by doing every kind of evil wicked deeds).
11. Thamûd (people) denied (their Prophet) through their transgression (by rejecting the true Faith of Islâmic Monotheism, and by following polytheism, and by committing every kind of sin).
13. But the Messenger of Allâh [Sâlih عليه السلام] said to them: "Be cautious! (Fear the evil end). That is the she-camel of Allâh! (Do not harm it) and bar it not from having its drink!"
14. Then they denied him and they killed it. So their Lord destroyed them because of their sin, and made them equal in destruction (i.e. all grades of people, rich and poor, strong and weak, etc.)!
