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

(111) Except those who believe (in the Oneness of Allah - Islamic Monotheism) and do righteous deeds, and remember Allah much, and vindicate themselves after they have been wronged [by replying back in poetry to the unjust poetry (which the pagan poets utter against the Muslims)]. And those who do wrong will come to know by what overturning they will be overturned.

(112) So he [Sulaiman (Solomon)] smiled, amused at her speech and said: "My Lord! Grant me the power and ability that I may be grateful for Your Favours which You have bestowed on me and on my parents, and that I may do righteous good deeds that will please You, and admit me by Your Mercy among Your righteous slaves."

(113) Whoever brings a good deed (i.e. Belief in the Oneness of Allah along with every deed of righteousness), will have better than its worth; and they will be safe from the terror on that Day.

(114) He said: "I intend to wed one of these two daughters of mine to you, on condition that you serve me for eight years; but if you complete ten years, it will be (a favour) from you. But I intend not to place you under a difficulty. If Allah wills, you will find me one of the righteous."

(115) But as for him who repented (from polytheism and sins), believed (in the Oneness of Allah, and in His Messenger Muhammad صلى الله عليه وسلم), and did righteous deeds (in the life of this world), then he will be among those who are successful.

(116) But those who had been given (religious) knowledge said: "Woe to you! The Reward of Allah (in the Hereafter) is better for those who believe and do righteous good deeds, and this none shall attain except those who are As-Sabirun (the patient in following the truth)."

(117) Whosoever brings good (Islamic Monotheism along with righteous deeds), he shall have the better thereof; and whosoever brings evil (polytheism along with evil deeds), then those who do evil deeds will only be requited for what they used to do.

(118) Those who believe [in the Oneness of Allah (Monotheism) and in Messenger Muhammad صلى الله عليه وسلم , and do not give up their faith because of the harm they receive from the polytheists], and do righteous good deeds, surely, We shall expiate from them their evil deeds and shall reward them according to the best of that which they used to do.

(119) And for those who believe (in the Oneness of Allah and the other articles of Faith) and do righteous good deeds, surely, We shall make them enter with (in the entrance of) the righteous (in Paradise).

(120) And We bestowed on him [Ibrahim (Abraham)], Ishaq (Isaac) and Ya'qub (Jacob), and We ordained among his offspring Prophethood and the Book [i.e. the Taurat (Torah) (to Musa - Moses), the Injeel (Gospel) (to 'Îsa - Jesus), and the Qur'an (to Muhammad صلى الله عليه وسلم), all from the offspring of Ibrahim (Abraham)], and We granted him his reward in this world; and verily, in the Hereafter he is indeed among the righteous.