Translation of the verse 14 from Surah Al-A‘la : Number of verses 19 - - page 592 - Part 30.
Indeed whosoever purifies himself (by avoiding polytheism and accepting Islamic Monotheism) shall achieve success,
He has certainly succeeded who purifies himself
(87:14) He who purified himself shall prosper, *13
*13) "Who purified himself": who affirmed the faith giving up disbelief and polytheism, adopted good morals giving up evil morals, and performed good deeds giving up evil deeds. Success dces not imply worldly prosperity, but true and real success whether worldly prosperity accompanies it or not. (For explanation, see E.N. 23 of Yunus, E.N.'s 1, I 1-50 of Al-Mu'minun, E.N. 4 of Luqman).
Source : Al-A‘la Verse 14: He has certainly succeeded who purifies himself