ولا تقربوا مال اليتيم إلا بالتي هي أحسن حتى يبلغ أشده وأوفوا (17:34) بالانجليزي

(17:34) (10). Do not go near the property of an orphan except in the best manner until he reaches the age of maturity. *38 11. Keep your pledges, for you shall be accountable for your pledges. *39

Tafseer Abu-al-A'la Maududi

Page 285 English Traditional

*38) This too, was not merely a moral instruction. When the Islamic State was established, legal and administrative methods were adopted to safeguard the rights of orphans, the details of which are found in the literature of Hadith and Fiqh. Then this principle was extended to cover the cases of all those citizens who were unable to safeguard their own rights. The Holy Prophet himself declared, "I am the guardian of the one who has no guardian" . And this is the basis of many rules and regulations of the Islamic Law.
*39) "Fulfilment of pledges" was not meant to be merely a moral instruction for individuals but afterwards when the Islamic State was established, this became the guiding principle for the conduct of all internal; and external affairs by the Muslim Community and the Islamic Government.