The word(s) "therein" appears 209 time(s) in 197 verse(s) in Quran in Abdullah Yusuf Ali translation.

(131) But those who believe and work deeds of righteousness - to them shall We give a Home in Heaven,- lofty mansions beneath which flow rivers,- to dwell therein for aye;- an excellent reward for those who do (good)!-

(132) To dwell therein. The promise of Allah is true: and He is Exalted in Power, Wise.

(133) As to those who are rebellious and wicked, their abode will be the Fire: every time they wish to get away therefrom, they will be forced thereinto, and it will be said to them: "Taste ye the Penalty of the Fire, the which ye were wont to reject as false."

(134) Call them by (the names of) their fathers: that is juster in the sight of Allah. But if ye know not their father's (names, call them) your Brothers in faith, or your maulas. But there is no blame on you if ye make a mistake therein: (what counts is) the intention of your hearts: and Allah is Oft-Returning, Most Merciful.

(135) To dwell therein for ever: no protector will they find, nor helper.

(136) Between them and the Cities on which We had poured our blessings, We had placed Cities in prominent positions, and between them We had appointed stages of journey in due proportion: "Travel therein, secure, by night and by day."

(137) But they said: "Our Lord! Place longer distances between our journey-stages": but they wronged themselves (therein). At length We made them as a tale (that is told), and We dispersed them all in scattered fragments. Verily in this are Signs for every (soul that is) patiently constant and grateful.

(138) Say: "Call upon other (gods) whom ye fancy, besides Allah: They have no power,- not the weight of an atom,- in the heavens or on earth: No (sort of) share have they therein, nor is any of them a helper to Allah.

(139) Nor are the two bodies of flowing water alike,- the one palatable, sweet, and pleasant to drink, and the other, salt and bitter. Yet from each (kind of water) do ye eat flesh fresh and tender, and ye extract ornaments to wear; and thou seest the ships therein that plough the waves, that ye may seek (thus) of the Bounty of Allah that ye may be grateful.

(140) Gardens of Eternity will they enter: therein will they be adorned with bracelets of gold and pearls; and their garments there will be of silk.