Al-An'am 6:152 ولا تقربوا مال اليتيم الا بالتي هي احسن حتى يبلغ اشده واوفوا الكيل والميزان بالقسط لا نكلف نفسا الا وسعها واذا قلتم فاعدلوا ولو كان ذا قربى وبعهد الله اوفوا ذالكم وصاكم به لعلكم تذكرون ١٥٢

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.