The word(s) "righteousness" appears 36 time(s) in 36 verse(s) in Quran in Mohsin Khan translation.

(11) But those who believe (in the Oneness of Allah - Islamic Monotheism) and do deeds of righteousness, We shall admit them to the Gardens under which rivers flow (i.e. in Paradise) to dwell therein forever. Allah's Promise is the Truth; and whose words can be truer than those of Allah? (Of course, none).

(12) So, as for those who believed (in the Oneness of Allah - Islamic Monotheism) and did deeds of righteousness, He will give them their (due) rewards - and more out of His Bounty. But as for those who refused His worship and were proud, He will punish them with a painful torment. And they will not find for themselves besides Allah any protector or helper.

(13) O you who believe! Violate not the sanctity of the Symbols of Allah, nor of the Sacred Month, nor of the animals brought for sacrifice, nor the garlanded people or animals , and others nor the people coming to the Sacred House (Makkah), seeking the bounty and good pleasure of their Lord. But when you finish the Ihram (of Hajj or 'Umrah ), you may hunt, and let not the hatred of some people in (once) stopping you from Al-Masjid-Al-Haram (at Makkah) lead you to transgression (and hostility on your part). Help you one another in Al-Birr and At-Taqwa (virtue, righteousness and piety); but do not help one another in sin and transgression. And fear Allah. Verily, Allah is Severe in punishment.

(14) Allah has promised those who believe (in the Oneness of Allah - Islamic Monotheism) and do deeds of righteousness, that for them there is forgiveness and a great reward (i.e. Paradise).

(15) Surely, those who believe (in the Oneness of Allah, in His Messenger Muhammad صلى الله عليه وسلم and all that was revealed to him from Allah), and those who are the Jews and the Sabians and the Christians, - whosoever believed in Allah and the Last Day, and worked righteousness, on them shall be no fear, nor shall they grieve.

(16) Do they then wait for anything other than that the angels should come to them, or that your Lord (Allah) should come, or that some of the Signs of your Lord should come (i.e. portents of the Hour e.g., rising of the sun from the west)! The day that some of the Signs of your Lord do come, no good will it do to a person to believe then, if he believed not before, nor earned good (by performing deeds of righteousness) through his Faith. Say: "Wait you! we (too) are waiting."

(17) O Children of Adam! We have bestowed raiment upon you to cover yourselves (screen your private parts) and as an adornment; and the raiment of righteousness, that is better. Such are among the Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.) of Allah, that they may remember (i.e. leave falsehood and follow truth ).

(18) But those who believed (in the Oneness of Allah - Islamic Monotheism), and worked righteousness - We tax not any person beyond his scope - such are the dwellers of Paradise. They will abide therein.

(19) I shall turn away from My Ayat (verses of the Qur'an) those who behave arrogantly on the earth, without a right, and (even) if they see all the Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.), they will not believe in them. And if they see the way of righteousness (monotheism, piety, and good deeds), they will not adopt it as the Way, but if they see the way of error (polytheism, crimes and evil deeds), they will adopt that way, that is because they have rejected Our Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.) and were heedless (to learn a lesson) from them.

(20) It was not becoming of the people of Al-Madinah and the bedouins of the neighbourhood to remain behind Allah's Messenger (Muhammad صلى الله عليه وسلم when fighting in Allah's Cause) and (it was not becoming of them) to prefer their own lives to his life. That is because they suffer neither thirst nor fatigue, nor hunger in the Cause of Allah, nor they take any step to raise the anger of disbelievers nor inflict any injury upon an enemy but is written to their credit as a deed of righteousness. Surely, Allah wastes not the reward of the Muhsinun