Leviticus
19:35 Ye shall do no unrighteousness in Judgment, in measures of length, in weight, or in quantity.
19:36 Just balances, just weights, a just ephah, and a just hin, shall ye have: I [am] the "I AM" your God, which brought you out of the land of Egypt.
19:37 Therefore shall ye observe all My Statutes, and all My Judgments, and do them: I [am] the "I AM".
Deuteronomy
25:13 Thou shalt not have in thy bag diverse weights, a great and a small.
25:14 Thou shalt not have in thine house diverse measures, a great and a small.
25:15 [But] thou shalt have a perfect and just weight, a perfect and just measure shalt thou have: that thy days may be lengthened in the land which the "I AM" thy God giveth thee.
25:16 For all that do such things, [and] all that do unrighteously, [are] an abomination unto the "I AM" thy God.
Proverbs
20:10 Diverse weights, [and] diverse measures, both of them [are] alike in that they are an abomination to the "I AM".
Micah
6:10 Are there yet the treasures of wickedness in the house of the wicked, and the scant measure [that is] abominable?
6:11 Shall I count [them] pure with the wicked balances, and with the bag of deceitful weights?
6:12 For the rich men thereof are full of violence, and the inhabitants thereof have spoken lies, and their tongue [is] deceitful in their mouth.
Surah 7 - The Heights
7:85. To the Midian people We sent Shu'aib, one of their own brethren: he said: "O my People! Worship "I AM"; 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.
Surah 11 - Hud
11:84. To the Midian people (We sent) Shu'aib, one of their own brethren: he said: "O my People! Worship God: ye have no other god but Him. And give not short measure or weight: I see you in prosperity, but I fear for you the Penalty of a Day that will compass (you) all round.
11:85. "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.
Surah 17 - Isra', The Night Journey, Children Of Israel
17:35. Give full measure when ye measure, and weigh with a balance that is straight: that is the most fitting and the most advantageous in the final determination.
Surah 26 - The Poets
26:181. "Give just measure, and cause no loss (to others by fraud).
26:182. "And weigh with scales true and upright.
26:183. "And withhold not things justly due to men, nor do evil in the land, working mischief.
Surah 83 - Defrauding, The Cheats, Cheating
83:1. Woe to those that deal in fraud,-
83:2. Those who, when they have to receive by measure from men, exact full measure,
83:3. But when they have to give by measure or weight to men, give less than due.
83:4. Do they not think that they will be called to account?-
83:5. On a Mighty Day,
83:6. A Day when (all) mankind will stand before the Lord of the Worlds?
83:7. Nay! Surely the record of the wicked is (preserved) in their Prison Record.
83:8. And what will explain to thee what Prison Record is?
83:9. (There is) a Register (fully) inscribed.
83:10. Woe, that Day, to those that deny-
83:11. Those that deny the Day of Judgment.
83:12. And none can deny it but the Transgressor beyond bounds the Sinner!
83:13. When Our Signs are rehearsed to him, he says, "Old-wives' Tales!"
83:14. By no means! But on their hearts is the stain of the (ill) which they do!
83:15. Verily, from (the Light of) their Lord, that Day, will they be veiled.
83:16. Further, they will enter the Fire of Hell.
83:17. Further, it will be said to them: "This is the (reality) which ye rejected as false!
83:18. Nay, verily the record of the Righteous is (preserved) in High Places.
83:19. And what will explain to thee what 'High Places' is?
83:20. (There is) a Register (fully) inscribed (the Book of Life - Rev. 20:12),
83:21. To which bear witness those Nearest to "I AM".
83:22. Truly the Righteous will be in Bliss:
83:23. On Thrones (of Dignity) will they command a sight (of all things):
83:24. Thou wilt recognise in their faces the beaming brightness of Bliss.
83:25. Their thirst will be slaked with Pure Wine sealed:
83:26. The seal thereof will be Musk: and for this let those aspire, who have aspirations:
83:27. With it will be (given) a mixture of "Overflow" (Psalm 23:5):
83:28. A spring, from (the "Waters") whereof drink those Nearest to "I AM".
83:29. Those in sin used to laugh at those who believed,
83:30. And whenever they passed by them, used to wink at each other (in mockery);
83:31. And when they returned to their own people, they would return jesting;
83:32. And whenever they saw them, they would say, "Behold! These are the people truly astray!"
83:33. But they had not been sent as Keepers over them!
83:34. But on this Day the Believers will laugh at the Unbelievers:
83:35. On Thrones (of Dignity) they will command (a sight) (of all things).
83:36. Will not the Unbelievers have been paid back for what they did?
Surah 83 pretty much sums it all up
-Smart-Aleck