leave their possessions

وَءَاتُوا۟ ٱلْيَتَـٰمَىٰٓ أَمْوَٰلَهُمْ ۖ وَلَا تَتَبَدَّلُوا۟ ٱلْخَبِيثَ بِٱلطَّيِّبِ ۖ وَلَا تَأْكُلُوٓا۟ أَمْوَٰلَهُمْ إِلَىٰٓ أَمْوَٰلِكُمْ ۚ إِنَّهُۥ كَانَ حُوبًا كَبِيرًا

Give orphans their property, do not replace [their] good things with bad, and do not consume their property with your own- a great sin.

وَإِنْ خِفْتُمْ أَلَّا تُقْسِطُوا۟ فِى ٱلْيَتَـٰمَىٰ فَٱنكِحُوا۟ مَا طَابَ لَكُم مِّنَ ٱلنِّسَآءِ مَثْنَىٰ وَثُلَـٰثَ وَرُبَـٰعَ ۖ فَإِنْ خِفْتُمْ أَلَّا تَعْدِلُوا۟ فَوَٰحِدَةً أَوْ مَا مَلَكَتْ أَيْمَـٰنُكُمْ ۚ ذَٰلِكَ أَدْنَىٰٓ أَلَّا تَعُولُوا۟

If you fear that you will not deal fairly with orphan girls, you may marry whichever [other] women seem good to you, two, three, or four. If you fear that you cannot be equitable [to them], then marry only one, or your slave(s): that is more likely to make you avoid bias.

إِنَّ ٱلَّذِينَ يَأْكُلُونَ أَمْوَٰلَ ٱلْيَتَـٰمَىٰ ظُلْمًا إِنَّمَا يَأْكُلُونَ فِى بُطُونِهِمْ نَارًا ۖ وَسَيَصْلَوْنَ سَعِيرًا

Those who consume the property of orphans unjustly are actually swallowing fire into their own bellies: they will burn in the blazing Flame.

وَلَا تَقْرَبُوا۟ مَالَ ٱلْيَتِيمِ إِلَّا بِٱلَّتِى هِىَ أَحْسَنُ حَتَّىٰ يَبْلُغَ أَشُدَّهُۥ ۚ وَأَوْفُوا۟ بِٱلْعَهْدِ ۖ إِنَّ ٱلْعَهْدَ كَانَ مَسْـُٔولًا

Do not go near the orphan’s property, except with the best [intentions], until he reaches the age of maturity. Honour your pledges: you will be questioned about your pledges.