The word(s) "therein" appears 248 time(s) in 225 verse(s) in Quran in Mohsin Khan translation.

(81) They will dwell therein for all the time that the heavens and the earth endure, except as your Lord wills. Verily, your Lord is the Doer of whatsoever He intends (or wills).

(82) And those who are blessed, they will be in Paradise, abiding therein for all the time that the heavens and the earth endure, except as your Lord wills: a gift without an end.

(83) Indeed, We gave the Book to Musa (Moses), but differences arose therein, and had it not been for a Word that had gone forth before from your Lord, the case would have been judged between them, and indeed they are in grave doubt concerning it (this Qur'an).

(84) Thus did We give full authority to Yusuf (Joseph) in the land, to take possession therein, when or where he likes. We bestow of Our Mercy on whom We will, and We make not to be lost the reward of Al-Muhsinun (the good doers - See V.2:112).

(85) And it is He Who spread out the earth, and placed therein firm mountains and rivers and of every kind of fruits He made Zawjain Ithnain (two in pairs - may mean two kinds or it may mean: of two varieties, e.g. black and white, sweet and sour, small and big). He brings the night as a cover over the day. Verily, in these things, there are Ayat (proofs, evidence, lessons, signs, etc.) for people who reflect.

(86) And if you (O Muhammad صلى الله عليه و سلم) wonder (at these polytheists who deny your message of Islamic Monotheism and have taken besides Allah others for worship who can neither harm nor benefit), then wondrous is their saying: "When we are dust, shall we indeed then be (raised) in a new creation?" They are those who disbelieved in their Lord! They are those who will have iron chains tying their hands to their necks. They will be the dwellers of the Fire to abide therein.

(87) Those who prefer the life of this world to the Hereafter, and hinder (men) from the Path of Allah (i.e. Islam) and seek crookedness therein - they are far astray.

(88) And indeed We sent Musa (Moses) with Our Ayat (signs, proofs, and evidence) (saying): "Bring out your people from darkness into light, and remind them of the Annals of Allah. Truly, therein are Ayat (evidence, proofs and signs) for every patient, thankful (person)."

(89) And those who believed (in the Oneness of Allah and His Messengers and whatever they brought) and did righteous deeds, will be made to enter Gardens under which rivers flow, - to dwell therein for ever (i.e. in Paradise), with the Permission of their Lord. Their greeting therein will be: Salam (peace!).

(90) And the earth We have spread out, and have placed therein firm mountains, and caused to grow therein all kinds of things in due proportion.