The word(s) "sigh" appears 79 time(s) in 79 verse(s) in Quran in Abdullah Yusuf Ali translation.

(51) O ye who believe! Be ye not like those who vexed and insulted Moses, but Allah cleared him of the (calumnies) they had uttered: and he was honourable in Allah's sight.

(52) Is he, then, to whom the evil of his conduct is made alluring, so that he looks upon it as good, (equal to one who is rightly guided)? For Allah leaves to stray whom He wills, and guides whom He wills. So let not thy soul go out in (vainly) sighing after them: for Allah knows well all that they do!

(53) He it is That has made you inheritors in the earth: if, then, any do reject (Allah), their rejection (works) against themselves: their rejection but adds to the odium for the Unbelievers in the sight of their Lord: their rejection but adds to (their own) undoing.

(54) If Allah were to punish men according to what they deserve. He would not leave on the back of the (earth) a single living creature: but He gives them respite for a stated Term: when their Term expires, verily Allah has in His sight all His Servants.

(55) They were, in Our sight, truly, of the company of the Elect and the Good.

(56) "(Such) as dispute about the Signs of Allah, without any authority that hath reached them, grievous and odious (is such conduct) in the sight of Allah and of the Believers. Thus doth Allah, seal up every heart - of arrogant and obstinate Transgressors."

(57) At length, when they reach the (Fire), their hearing, their sight, and their skins will bear witness against them, as to (all) their deeds.

(58) "Ye did not seek to hide yourselves, lest your hearing, your sight, and your skins should bear witness against you! But ye did think that Allah knew not many of the things that ye used to do!

(59) When we give him a taste of some Mercy from Ourselves, after some adversity has touched him, he is sure to say, "This is due to my (merit): I think not that the Hour (of Judgment) will (ever) be established; but if I am brought back to my Lord, I have (much) good (stored) in His sight!" But We will show the Unbelievers the truth of all that they did, and We shall give them the taste of a severe Penalty.

(60) But those who dispute concerning Allah after He has been accepted,- futile is their dispute in the sight of their Lord: on them will be a Penalty terrible.