The word(s) "therefore" appears 67 time(s) in 66 verse(s) in Quran in Abdullah Yusuf Ali translation.

(51) therefore do thou hold Patience,- a Patience of beautiful (contentment).

(52) (He is) Lord of the East and the West: there is no god but He: take Him therefore for (thy) Disposer of Affairs.

(53) Verily this is an Admonition: therefore, whoso will, let him take a (straight) path to his Lord!

(54) Thy Lord doth know that thou standest forth (to prayer) nigh two-thirds of the night, or half the night, or a third of the night, and so doth a party of those with thee. But Allah doth appoint night and day in due measure He knoweth that ye are unable to keep count thereof. So He hath turned to you (in mercy): read ye, therefore, of the Qur'an as much as may be easy for you. He knoweth that there may be (some) among you in ill-health; others travelling through the land, seeking of Allah's bounty; yet others fighting in Allah's Cause, read ye, therefore, as much of the Qur'an as may be easy (for you); and establish regular Prayer and give regular Charity; and loan to Allah a Beautiful Loan. And whatever good ye send forth for your souls ye shall find it in Allah's Presence,- yea, better and greater, in Reward and seek ye the Grace of Allah: for Allah is Oft-Forgiving, Most Merciful.

(55) therefore be patient with constancy to the Command of thy Lord, and hearken not to the sinner or the ingrate among them.

(56) That Day will be the sure Reality: therefore, whoso will, let him take a (straight) return to his Lord!

(57) therefore, when there comes the great, overwhelming (Event),-

(58) therefore let whoso will, keep it in remembrance.

(59) therefore grant a delay to the Unbelievers: Give respite to them gently (for awhile).

(60) therefore give admonition in case the admonition profits (the hearer).