Sura al-Anʿām 6:152

وَلَا تَقْرَبُوا۟ مَالَ ٱلْيَتِيمِ إِلَّا بِٱلَّتِى هِىَ أَحْسَنُ حَتَّىٰ يَبْلُغَ أَشُدَّهُۥ وَأَوْفُوا۟ ٱلْكَيْلَ وَٱلْمِيزَانَ بِٱلْقِسْطِ لَا نُكَلِّفُ نَفْسًا إِلَّا وُسْعَهَا وَإِذَا قُلْتُمْ فَٱعْدِلُوا۟ وَلَوْ كَانَ ذَا قُرْبَىٰ وَبِعَهْدِ ٱللَّـهِ أَوْفُوا۟ ذَٰلِكُمْ وَصَّىٰكُم بِهِۦ لَعَلَّكُمْ تَذَكَّرُونَ

wa-lā taqrabū māla l-yatīmi illā billatī hiya aḥsanu ḥattā yablugha ashuddahu wa-awfū l-kayla wa-l-mīzāna bil-qisṭi lā nukallifu nafsan illā wusʿahā wa-idhā qultum faʿdilū wa-law kāna dhā qurba wa-biʿahdi allāhi awfū dhālikum waṣṣakum bihi la-ʿallakum tadhakkarūna

And come not nigh to the orphan's property, except to improve it, until he attain the age of full strength; give measure and weight with (full) justice;- no burden do We place on any soul, but that which it can bear;- whenever ye speak, speak justly, even if a near relative is concerned; and fulfil the covenant of Allah: thus doth He command you, that ye may remember.