The word(s) "herein" appears 288 time(s) in 262 verse(s) in Quran in Mohsin Khan translation.

(171) (Allah says to His Prophet Muhammad صلى الله عليه وسلم): "Allah (Alone) created the heavens and the earth with truth (and none shared Him in their creation)." Verily! Therein is surely a sign for those who believe.

(172) And thus We have sent down the Book (i.e. this Qur'an) to you (O Muhammad صلى الله عليه وسلم), and those whom We gave the Scripture [the Taurat (Torah) and the Injeel (Gospel) aforetime] believe therein as also do some of these (who are present with you now like 'Abdullah bin Salam) and none but the disbelievers reject Our Ayat [(proofs, signs, verses, lessons, etc.,) and deny Our Oneness of Lordship and Our Oneness of worship and Our Oneness of Our Names and Qualities: i.e. Islamic Monotheism].

(173) Is it not sufficient for them that We have sent down to you the Book (the Qur'an) which is recited to them? Verily, herein is mercy and a reminder (or an admonition) for a people who believe .

(174) And those who believe (in the Oneness of Allah - Islamic Monotheism) and do righteous good deeds, to them We shall surely give lofty dwellings in Paradise, underneath which rivers flow, to live therein forever. Excellent is the reward for the workers.

(175) And when We cause mankind to taste of mercy, they rejoice therein; but when some evil afflicts them because of (evil deeds and sins) that their (own) hands have sent forth, behold, they are in despair!

(176) To abide therein. It is a Promise of Allah in truth. And He is the All-Mighty, the All-Wise.

(177) He has created the heavens without any pillars that you see, and has set on the earth firm mountains lest it should shake with you. And He has scattered therein moving (living) creatures of all kinds. And We send down water (rain) from the sky, and We cause (plants) of every goodly kind to grow therein.

(178) Verily, your Lord will judge between them, on the Day of Resurrection, concerning that wherein they used to differ.

(179) Is it not a guidance for them: how many generations We have destroyed before them in whose dwellings they do walk about? Verily, therein indeed are signs. Would they not then listen?

(180) Wherein they will abide for ever, and they will find neither a Wali (a protector) nor a helper.