The word(s) "straitness" appears 5 time(s) in 5 verse(s) in Quran in Muhammad Habib Shakir translation.

(1) And if (the debtor) is in straitness, then let there be postponement until (he is in) ease; and that you remit (it) as alms is better for you, if you knew.

(2) Those who spend (benevolently) in ease as well as in straitness, and those who restrain (their) anger and pardon men; and Allah loves the doers of good (to others).

(3) But no! by your Lord! they do not believe (in reality) until they make you a judge of that which has become a matter of disagreement among them, and then do not find any straitness in their hearts as to what you have decided and submit with entire submission.

(4) A Book revealed to you-- so let there be no straitness in your breast on account of it-- that you may warn thereby, and a reminder close to the believers.

(5) Certainly Allah has turned (mercifully) to the Prophet and those who fled (their homes) and the helpers who followed him in the hour of straitness after the hearts of a part of them were about to deviate, then He turned to them (mercifully); surely to them He is Compassionate, Merciful.