Al-Baqarah 2:282 يا ايها الذين امنوا اذا تداينتم بدين الى اجل مسمى فاكتبوه وليكتب بينكم كاتب بالعدل ولا ياب كاتب ان يكتب كما علمه الله فليكتب وليملل الذي عليه الحق وليتق الله ربه ولا يبخس منه شييا فان كان الذي عليه الحق سفيها او ضعيفا او لا يستطيع ان يمل هو فليملل وليه بالعدل واستشهدوا شهيدين من رجالكم فان لم يكونا رجلين فرجل وامراتان ممن ترضون من الشهداء ان تضل احداهما فتذكر احداهما الاخرى ولا ياب الشهداء اذا ما دعوا ولا تساموا ان تكتبوه صغيرا او كبيرا الى اجله ذالكم اقسط عند الله واقوم للشهادة وادنى الا ترتابوا الا ان تكون تجارة حاضرة تديرونها بينكم فليس عليكم جناح الا تكتبوها واشهدوا اذا تبايعتم ولا يضار كاتب ولا شهيد وان تفعلوا فانه فسوق بكم واتقوا الله ويعلمكم الله والله بكل شيء عليم ٢٨٢

Believers! Whenever you contract a debt from one another¹ for a known term, commit it to writing.² Let a scribe write it down between you justly, and the scribe may not refuse to write it down according to what Allah has taught him; so let him write, and let the debtor dictate; and let him fear Allah, his Lord, and curtail no part of it. If the debtor be feebleminded, weak, or incapable of dictating, let his guardian dictate equitably, and call upon two of your men as witnesses;³ but if two men are not there, then let there be one man and two women as witnesses from among those acceptable to you⁴ so that if one of the two women should fail to remember, the other might remind her. Let not the witnesses refuse when they are summoned (to give evidence). Do not show slackness in writing down the transaction, whether small or large, along with the term of its payment. That is fairest in the sight of Allah; it is best for testimony and is more likely to exclude all doubts. If it be a matter of buying and selling on the spot, it is not blameworthy if you do not write it down;⁵ but do take witnesses when you settle commercial transactions with one another. And the scribe or the witness may be done no harm.⁶ It will be sinful if you do so. Beware of the wrath of Allah. He teaches you the Right Way and has full knowledge of everything.