Sura al-Baqara 2:282

يَٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوٓا۟ إِذَا تَدَايَنتُم بِدَيْنٍ إِلَىٰٓ أَجَلٍ مُّسَمًّى فَٱكْتُبُوهُ وَلْيَكْتُب بَّيْنَكُمْ كَاتِبٌۢ بِٱلْعَدْلِ وَلَا يَأْبَ كَاتِبٌ أَن يَكْتُبَ كَمَا عَلَّمَهُ ٱللَّـهُ فَلْيَكْتُبْ وَلْيُمْلِلِ ٱلَّذِى عَلَيْهِ ٱلْحَقُّ وَلْيَتَّقِ ٱللَّـهَ رَبَّهُۥ وَلَا يَبْخَسْ مِنْهُ شَيْـًٔا فَإِن كَانَ ٱلَّذِى عَلَيْهِ ٱلْحَقُّ سَفِيهًا أَوْ ضَعِيفًا أَوْ لَا يَسْتَطِيعُ أَن يُمِلَّ هُوَ فَلْيُمْلِلْ وَلِيُّهُۥ بِٱلْعَدْلِ وَٱسْتَشْهِدُوا۟ شَهِيدَيْنِ مِن رِّجَالِكُمْ فَإِن لَّمْ يَكُونَا رَجُلَيْنِ فَرَجُلٌ وَٱمْرَأَتَانِ مِمَّن تَرْضَوْنَ مِنَ ٱلشُّهَدَآءِ أَن تَضِلَّ إِحْدَىٰهُمَا فَتُذَكِّرَ إِحْدَىٰهُمَا ٱلْأُخْرَىٰ وَلَا يَأْبَ ٱلشُّهَدَآءُ إِذَا مَا دُعُوا۟ وَلَا تَسْـَٔمُوٓا۟ أَن تَكْتُبُوهُ صَغِيرًا أَوْ كَبِيرًا إِلَىٰٓ أَجَلِهِۦ ذَٰلِكُمْ أَقْسَطُ عِندَ ٱللَّـهِ وَأَقْوَمُ لِلشَّهَٰدَةِ وَأَدْنَىٰٓ أَلَّا تَرْتَابُوٓا۟ إِلَّآ أَن تَكُونَ تِجَٰرَةً حَاضِرَةً تُدِيرُونَهَا بَيْنَكُمْ فَلَيْسَ عَلَيْكُمْ جُنَاحٌ أَلَّا تَكْتُبُوهَا وَأَشْهِدُوٓا۟ إِذَا تَبَايَعْتُمْ وَلَا يُضَآرَّ كَاتِبٌ وَلَا شَهِيدٌ وَإِن تَفْعَلُوا۟ فَإِنَّهُۥ فُسُوقٌۢ بِكُمْ وَٱتَّقُوا۟ ٱللَّـهَ وَيُعَلِّمُكُمُ ٱللَّـهُ وَٱللَّـهُ بِكُلِّ شَىْءٍ عَلِيمٌ

yā-ayyuhā lladhīna āmanū idhā tadāyantum bi-daynin ila ajalin musamman fa-uktubūhu wa-l-yaktub baynakum kātibun bil-ʿadli wa-lā yaʾba kātibun an yaktuba ka-mā ʿallamahu allāhu fa-l-yaktub wa-l-yumlili alladhī ʿalayhi l-ḥaqqu wa-l-yattaqi allāha rabbahu wa-lā yabkhas minhu shayʾan fa-in kāna alladhī ʿalayhi l-ḥaqqu safīhan aw ḍaʿīfan aw lā yastaṭīʿu an yumilla huwa fa-lyumlil walīyuhu bil-ʿadli wa-istashhidū shahīdayni min rijālikum fa-in lam yakūnā rajulayni fa-rajulun wa-amraʾatāni mimman tarḍawna mina l-shuhadāʾi an taḍilla iḥdāhumā fa-tudhakkira iḥdāhumā l-ukhrā wa-lā yaʾba l-suhadāʾu idhā mā duʿū wa-lā tasʾamū an taktubūhu ṣaghīran aw kabīran ila ajalihi dhālikum aqsaṭu ʿinda allāhi wa-aqwamu lil-shahādati wa-adna allā tartābū illā an takūna tijāratan ḥāḍiratan tudīrūnahā baynakum fa-laysa ʿalaykum junāḥun allā taktubūhā wa-ashhidū idhā tabāyaʿtum wa-lā yuḍārra kātibun wa-lā shahīdun wa-in tafʿalū fa-innahu fusūqun bikum wa-ittaqū allāha wayuʿallimukumu allāhu wallāhu bi-kulli shayʾin ʿalīmun

O ye who believe! When ye deal with each other, in transactions involving future obligations in a fixed period of time, reduce them to writing Let a scribe write down faithfully as between the parties: let not the scribe refuse to write: as Allah Has taught him, so let him write. Let him who incurs the liability dictate, but let him fear His Lord Allah, and not diminish aught of what he owes. If the party liable is mentally deficient, or weak, or unable Himself to dictate, Let his guardian dictate faithfully, and get two witnesses, out of your own men, and if there are not two men, then a man and two women, such as ye choose, for witnesses, so that if one of them errs, the other can remind her. The witnesses should not refuse when they are called on (For evidence). Disdain not to reduce to writing (your contract) for a future period, whether it be small or big: it is juster in the sight of Allah, More suitable as evidence, and more convenient to prevent doubts among yourselves but if it be a transaction which ye carry out on the spot among yourselves, there is no blame on you if ye reduce it not to writing. But take witness whenever ye make a commercial contract; and let neither scribe nor witness suffer harm. If ye do (such harm), it would be wickedness in you. So fear Allah; For it is Allah that teaches you. And Allah is well acquainted with all things.

Sura al-Aʿrāf 7:85

وَإِلَىٰ مَدْيَنَ أَخَاهُمْ شُعَيْبًا قَالَ يَٰقَوْمِ ٱعْبُدُوا۟ ٱللَّـهَ مَا لَكُم مِّنْ إِلَٰهٍ غَيْرُهُۥ قَدْ جَآءَتْكُم بَيِّنَةٌ مِّن رَّبِّكُمْ فَأَوْفُوا۟ ٱلْكَيْلَ وَٱلْمِيزَانَ وَلَا تَبْخَسُوا۟ ٱلنَّاسَ أَشْيَآءَهُمْ وَلَا تُفْسِدُوا۟ فِى ٱلْأَرْضِ بَعْدَ إِصْلَٰحِهَا ذَٰلِكُمْ خَيْرٌ لَّكُمْ إِن كُنتُم مُّؤْمِنِينَ

wa-ilā madyana akhāhum shuʿayban qalā yā-qawmi iʿbudū allāha mā la-kum min ilāhin ghayruhu qad jāʾatkum bayyinatun min rabbikum faawfū l-kayla wa-l-mīzāna wa-lā tabkhasū l-nāsa ashyāʾahum wa-lā tufsidū fī l-arḍi baʿda iṣlāḥihā dhālikum khayrun la-kum in kuntum muʾminīna

To the Madyan people We sent Shu'aib, one of their own brethren: he said: "O my people! worship Allah; Ye have no other god but Him. Now hath come unto you a clear (Sign) from your Lord! Give just measure and weight, nor withhold from the people the things that are their due; and do no mischief on the earth after it has been set in order: that will be best for you, if ye have Faith.

Sura Hūd 11:15

مَن كَانَ يُرِيدُ ٱلْحَيَوٰةَ ٱلدُّنْيَا وَزِينَتَهَا نُوَفِّ إِلَيْهِمْ أَعْمَٰلَهُمْ فِيهَا وَهُمْ فِيهَا لَا يُبْخَسُونَ

man kāna yurīdu l-ḥayāta l-dunyā wa-zīnatahā nuwaffi ilayhim aʿmālahum fīhā wa-hum fīhā lā yubkhasūna

Those who desire the life of the present and its glitter,- to them we shall pay (the price of) their deeds therein,- without diminution.

Sura Hūd 11:85

وَيَٰقَوْمِ أَوْفُوا۟ ٱلْمِكْيَالَ وَٱلْمِيزَانَ بِٱلْقِسْطِ وَلَا تَبْخَسُوا۟ ٱلنَّاسَ أَشْيَآءَهُمْ وَلَا تَعْثَوْا۟ فِى ٱلْأَرْضِ مُفْسِدِينَ

wa-yā-qawmi awfū l-mikyāla wa-l-mīzāna bil-qisṭi wa-lā tabkhasū l-nāsa ashyāʾahum wa-lā taʿthaw fī l-arḍi mufsidīna

"And O my people! give just measure and weight, nor withhold from the people the things that are their due: commit not evil in the land with intent to do mischief.

Sura al-Shuʿarā 26:183

وَلَا تَبْخَسُوا۟ ٱلنَّاسَ أَشْيَآءَهُمْ وَلَا تَعْثَوْا۟ فِى ٱلْأَرْضِ مُفْسِدِينَ

wa-lā tabkhasū l-nāsa ashyāʾahum wa-lā taʿthaw fī l-arḍi mufsidīna

"And withhold not things justly due to men, nor do evil in the land, working mischief.