A. Yusuf Ali:Translation:
Make trial of orphans until they reach the age 512 of
marriage; if then you find sound judgment in them,
release their property to them; but consume it not
wastefully, nor in haste against their growing up. If
the guardian is well-off, Let him claim no
remuneration, but if he is poor, let him have for
himself what is just and reasonable. When you release
their property to them, take witnesses in their
presence: But all-sufficient is Allah in taking
account. 513

512 The age of marriage is the age when they reach their majority.
513 It is good to take human witnesses when you faithfully discharge your trust; but remember that, however fully you satisfy your fellow-men when you give your account to them, their is a stricter account due from you to Allah. If you are righteous in Allah's eyes, you must follow these stricter standards.