The word(s) "at-taqwa" appears 4 time(s) in 4 verse(s) in Quran in Mohsin Khan translation.

(1) The Hajj (pilgrimage) is (in) the well-known (lunar year) months (i.e. the 10th month, the 11th month and the first ten days of the 12th month of the Islamic calendar, i.e. two months and ten days). So whosoever intends to perform Hajj therein (by assuming Ihram), then he should not have sexual relations (with his wife), nor commit sin, nor dispute unjustly during the Hajj. And whatever good you do, (be sure) Allah knows it. And take a provision (with you) for the journey, but the best provision is at-taqwa (piety, righteousness). So fear Me, O men of understanding!

(2) And if you divorce them before you have touched (had a sexual relation with) them, and you have appointed unto them the Mahr (bridal-money given by the husband to his wife at the time of marriage), then pay half of that (Mahr), unless they (the women) agree to forego it, or he (the husband), in whose hands is the marriage tie, agrees to forego and give her full appointed Mahr. And to forego and give (her the full Mahr) is nearer to at-taqwa (piety, righteousness). And do not forget liberality between yourselves. Truly, Allah is All-Seer of what you do.

(3) 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.

(4) O mankind! We have created you from a male and a female, and made you into nations and tribes, that you may know one another. Verily, the most honourable of you with Allah is that (believer) who has at-taqwa [i.e. he is one of the Muttaqun (the pious. See V.2:2)]. Verily, Allah is All-Knowing, All-Aware.