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

(1) 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.

(سورة الرعد, Ar-Ra'd, Chapter #13, Verse #29)
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(2) But none is granted it (the above quality) except those who are patient - and none is granted it except the owner of the great portion (of happiness in the Hereafter i.e. Paradise and of a high moral character) in this world.

(سورة فصلت, Fussilat, Chapter #41, Verse #35)
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(3) Enter Paradise, you and your wives, in happiness.

(سورة الزخرف, Az-Zukhruf, Chapter #43, Verse #70)
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(4) "Eat and drink with happiness because of what you used to do."

(سورة الطور, At-Tur, Chapter #52, Verse #19)
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