Surah Al-Isra, ayah 34

وَلَا تَقۡرَبُواْ مَالَ ٱلۡيَتِيمِ إِلَّا بِٱلَّتِي هِيَ أَحۡسَنُ حَتَّىٰ يَبۡلُغَ أَشُدَّهُۥۚ وَأَوۡفُواْ بِٱلۡعَهۡدِۖ إِنَّ ٱلۡعَهۡدَ كَانَ مَسۡـُٔولٗا ٣٤

Walā taqrabū mālal-yatīmi illā billatī hiya ahsanu hattā yablugha ashuddahū wa awfū bil-'ahdi innal-'ahda kāna mas'ūlā

And do not approach the property of an orphan, except in the way that is best,⁷⁴⁴ until he reaches maturity. And fulfill [every] commitment. Indeed, the commitment is ever [that about which one will be] questioned.