Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
quran:93:9

So as for the orphan, do not oppress ˹him˺.  

So, as for the orphan, do not oppress ˹him˺, by appropriating his wealth or otherwise,
القرآن:٩٣:٩

فَأَمَّا الْيَتِيمَ فَلَا تَقْهَرْ  

{فأما اليتيم فلا تقهر} بأخذ ماله أو غير ذلك.