وَلَا تَقۡرَبُواْ مَالَ ٱلۡيَتِيمِ إِلَّا بِٱلَّتِي هِيَ أَحۡسَنُ حَتَّىٰ يَبۡلُغَ أَشُدَّهُۥۚ وَأَوۡفُواْ بِٱلۡعَهۡدِۖ إِنَّ ٱلۡعَهۡدَ كَانَ مَسۡـُٔولٗا ٣٤
And do not approach the property of an orphan, except in the way that is best,1 until he reaches maturity. And fulfill [every] commitment. Indeed, the commitment is ever [that about which one will be] questioned.
Translation: Saheeh International (English)
1 i.e., to improve or increase it.
Each word's meaning and sound
Do not transact in the property of a child whose father has passed away, except in his best interests such as investing or preserving it until he reaches the age of mental and prudential maturity. Fulfill any pledge between yourselves and Allah, or between yourselves and His servants, without breaking or falling short in them. Allah will question the one who made a pledge on the Day of Judgement. Did he fulfill it, in which case He will reward him, or did he not fulfil it, in which case He will punish him.
Al-Mukhtasar in interpreting the Noble Quran