The word(s) "righteous" appears 184 time(s) in 178 verse(s) in Quran in Mohsin Khan translation.

(91) And verily, I am indeed forgiving to him who repents, believes (in My Oneness, and associates none in worship with Me) and does righteous good deeds, and then remains constant in doing them, (till his death).

(92) And he who works deeds of righteousness, while he is a believer (in Islamic Monotheism), then he will have no fear of injustice, nor of any curtailment (of his reward).

(93) And We bestowed upon him Ishaq (Isaac), and (a grandson) Ya'qub (Jacob). Each one We made righteous.

(94) And We admitted him to Our Mercy; truly, he was of the righteous.

(95) And We admitted them to Our Mercy. Verily, they were of the righteous.

(96) So We answered his call, and delivered him from the distress. And thus We do deliver the believers (who believe in the Oneness of Allah, abstain from evil and work righteousness).

(97) So whoever does righteous good deeds while he is a believer (in the Oneness of Allah - Islamic Monotheism), his efforts will not be rejected. Verily We record it for him (in his Book of deeds).

(98) And indeed We have written in Az-Zabur [i.e. all the revealed Holy Books - the Taurat (Torah), the Injeel (Gospel), the Psalms, the Qur'an,] after (We have already written in) Al-Lauh Al-Mahfuz (the Book that is in the heaven with Allah), that My righteous slaves shall inherit the land (i.e. the land of Paradise).

(99) Truly, Allah will admit those who believe (in Islamic Monotheism) and do righteous good deeds (according to the Qur'an and the Sunnah) to Gardens underneath which rivers flow (in Paradise). Verily, Allah does what He wills.

(100) Truly, Allah will admit those who believe (in the Oneness of Allah - Islamic Monotheism) and do righteous good deeds, to Gardens underneath which rivers flow (in Paradise), wherein they will be adorned with bracelets of gold and pearls and their garments therein will be of silk.