The word(s) "straiten" appears 18 time(s) in 17 verse(s) in Quran in Muhammad Pickthal translation.

(1) It is no sin for you if ye divorce women while yet ye have not touched them, nor appointed unto them a portion. Provide for them, the rich according to his means, and the straitened according to his means, a fair provision. (This is) a bounden duty for those who do good.

(2) Who is it that will lend unto Allah a goodly loan, so that He may give it increase manifold? Allah straiteneth and enlargeth. Unto Him ye will return.

(3) (Alms are) for the poor who are straitened for the cause of Allah, who cannot travel in the land (for trade). The unthinking man accounteth them wealthy because of their restraint. Thou shalt know them by their mark: They do not beg of men with importunity. And whatsoever good thing ye spend, lo! Allah knoweth it.

(4) And if the debtor is in straitened circumstances, then (let there be) postponement to (the time of) ease; and that ye remit the debt as almsgiving would be better for you if ye did but know.

(5) And we straitened Pharaoh's folk with famine and dearth of fruits, that peradventure they might heed.

(6) Allah hath given you victory on many fields and on the day of Huneyn, when ye exulted in your multitude but it availed you naught, and the earth, vast as it is, was straitened for you; then ye turned back in flight;

(7) And to the three also (did He turn in mercy) who were left behind, when the earth, vast as it is, was straitened for them, and their own souls were straitened for them till they bethought them that there is no refuge from Allah save toward Him. Then turned He unto them in mercy that they (too) might turn (repentant unto Him). Lo! Allah! He is the Relenting, the Merciful.

(8) A likely thing, that thou wouldst forsake aught of that which hath been revealed unto thee, and that thy breast should be straitened for it, because they say: Why hath not a treasure been sent down for him, or an angel come with him? Thou art but a warner, and Allah is in charge of all things.

(9) Allah enlargeth livelihood for whom He will, and straiteneth (it for whom He will); and they rejoice in the life of the world, whereas the life of the world is but brief comfort as compared with the Hereafter.

(10) Lo! thy Lord enlargeth the provision for whom He will, and straiteneth (it for whom He will). Lo, He was ever Knower, Seer of His slaves.