An-Nisa 4:6 وابتلوا اليتامى حتى اذا بلغوا النكاح فان انستم منهم رشدا فادفعوا اليهم اموالهم ولا تاكلوها اسرافا وبدارا ان يكبروا ومن كان غنيا فليستعفف ومن كان فقيرا فلياكل بالمعروف فاذا دفعتم اليهم اموالهم فاشهدوا عليهم وكفى بالله حسيبا ٦

Test the orphans until they reach the marriageable age. Then, if you perceive in them proper understanding, hand their property over to them, and do not consume it extravagantly and hastily, lest they should grow up. Whoever is rich should abstain (from using it for himself), and whoever is poor may have from it (to the extent of his necessary need) with fairness. So, when you hand their property over to them, make witnesses upon them. Allah is sufficient for reckoning