6:152
And (do) not go near wealth (of) the orphans except with that which (is) best until he reaches his maturity. And give full [the] measure and the weight with justice. Not We burden any soul except (to) its capacity. And when you speak then be just even if he is (one of) a near relative. And (the) Covenant (of) Allah fulfil. That (He) has enjoined on you with it so that you may remember.
7:85
And to Madyan, his brother Shuaib. He said, "O my people! Worship Allah, not for you any god other than Him. Verily, has came to you a clear proof from your Lord. So give full [the] measure and the weight and (do) not deprive [the] people in their things and (do) not cause corruption in the earth after its reformation. That (is) better for you if you are believers.
12:59
And when he had furnished them with their supplies, he said, "Bring to me a brother of yours, from your father. Do not you see that I [I] give full [the] measure, and that I am (the) best (of) the hosts?
17:35
And give full [the] measure when you measure, and weigh with the balance the straight. That (is) good and best (in) result.