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

(61) And verily, the reward of the Hereafter is better for those who believe and used to fear Allah and keep their duty to Him (by abstaining from all kinds of sins and evil deeds and by performing all kinds of righteous good deeds).

(62) They said: "Are you indeed Yusuf (Joseph)?" He said: "I am Yusuf (Joseph), and this is my brother (Benjamin). Allah has indeed been gracious to us. Verily, he who fears Allah with obedience to Him (by abstaining from sins and evil deeds, and by performing righteous good deeds), and is patient, then surely, Allah makes not the reward of the Muhsinun (good-doers - see V.2:112) to be lost."

(63) "My Lord! You have indeed bestowed on me of the sovereignty, and taught me something of the interpretation of dreams - the (Only) Creator of the heavens and the earth! You are my Wali (Protector, Helper, Supporter, Guardian, God, Lord.) in this world and in the Hereafter. Cause me to die as a Muslim (the one submitting to Your Will), and join me with the righteous."

(64) And We sent not before you (as Messengers) any but men unto whom We revealed, from among the people of the townships. Have they not travelled in the land and seen what was the end of those who were before them? And verily, the home of the Hereafter is the best for those who fear Allah and obey Him (by abstaining from sins and evil deeds, and by performing righteous good deeds). Do you not then understand?

(65) 'Adn (Eden) Paradise (everlasting Gardens), which they shall enter and (also) those who acted righteously from among their fathers, and their wives, and their offspring. And angels shall enter unto them from every gate (saying):

(66) Those who believed (in the Oneness of Allah - Islamic Monotheism), and work righteousness, Tuba (all kinds of happiness or name of a tree in Paradise) is for them and a beautiful place of (final) return.

(67) And those who believed (in the Oneness of Allah and His Messengers and whatever they brought) and did righteous deeds, will be made to enter Gardens under which rivers flow, - to dwell therein for ever (i.e. in Paradise), with the Permission of their Lord. Their greeting therein will be: Salam (peace!).

(68) Whoever works righteousness - whether male or female - while he (or she) is a true believer (of Islamic Monotheism) verily, to him We will give a good life (in this world with respect, contentment and lawful provision), and We shall pay them certainly a reward in proportion to the best of what they used to do (i.e. Paradise in the Hereafter).

(69) Then, verily! Your Lord - for those who do evil (commit sins and are disobedient to Allah) in ignorance and afterward repent and do righteous deeds, verily, your Lord thereafter, (to such) is Oft-Forgiving, Most Merciful.

(70) Verily, Ibrahim (Abraham) was an Ummah (a leader having all the good righteous qualities), or a nation, obedient to Allah, Hanif (i.e. to worship none but Allah), and he was not one of those who were Al-Mushrikun (polytheists, idolaters, disbelievers in the Oneness of Allah, and those who joined partners with Allah).