Quran 17:34 from Surah Al-Israa on Divine Marvels.
وَلَا تَقۡرَبُواْ مَالَ ٱلۡيَتِيمِ إِلَّا بِٱلَّتِي هِيَ أَحۡسَنُ حَتَّىٰ يَبۡلُغَ أَشُدَّهُۥۚ وَأَوۡفُواْ بِٱلۡعَهۡدِۖ إِنَّ ٱلۡعَهۡدَ كَانَ مَسۡـُٔولٗا
English translation: And (do) not come near (the) wealth (of) the orphan except with what [it] is best until he reaches his maturity And fulfil the covenant Indeed the covenant will be questioned
Transliteration: wala taqrabu mala al-yatimi illa bi-allati hiya ahsanu hatta yablugha ashuddahu wa-awfu bil-'ahdi inna al-'ahda kana masulan