Al-An'aam 6:152

Do not approach the orphan’s property, except to improve it, until he attains maturity. Give full measure and weight with justice. We do not burden any soul beyond what it can bear. And maintain justice when you speak, even if it be about a close relative. And fulfill the covenant of Allah. This is what He commands you, so that you may take heed.

And do not approach the orphan's property except in a way that is best [i.e., intending improvement] until he reaches maturity. And give full measure and weight in justice. We do not charge any soul except [with that within] its capacity. And when you speak [i.e., testify], be just, even if [it concerns] a near relative. And the covenant of Allāh fulfill. This has He instructed you that you may remember.

152. "And come not near to the orphan’s property, except to improve it, until he (or she) attains the age of full strength; and give full measure and full weight with justice. We burden not any person, but that which he can bear. And whenever you give your word (i.e. judge between men or give evidence), say the truth even if a near relative is concerned, and fulfil the Covenant of Allâh. This He commands you, that you may remember[19].

[19] (V.6:152):
A) See the footnotes of (V.3:130).
B) See the footnote of (V.4:135).

And approach not the wealth of the orphan save with that which is better, till he reach maturity. Give full measure and full weight, in justice. We task not any soul beyond its scope. And if ye give your word, do justice thereunto, even though it be (against) a kinsman; and fulfil the covenant of Allah. This He commandeth you that haply ye may remember.