M. H. Shakir, The Holy Quran; Arabic Text and English Translation; Foot-notes by M. H. Shakir (1974)

278. O you who believe! be careful of (your duty to) Allah and relinquish what remains (due) from usury, if you are believers.

279. But if you do (it) not, then be apprised of war from Allah and His Apostle; and if you repent, then you shall have your capital; neither shall you make (the debtor) suffer loss, nor shall you be made to suffer loss.

280. 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.

281. And guard yourselves against a day in which you shall be returned to Allah; then every soul shall be paid back in full what it has earned, and they shall not be dealt with unjustly.

282. O you who believe! when you deal with each other in contracting a debt for a fixed time, then write it down; and let a scribe write it down between you with fairness; and the scribe should not refuse to write as Allah has taught him, so he should write; and let him who owes the debt dictate, and he should be careful of (his duty to) Allah,