Is zakat obligatory on the money of minor orphans deposited in an Islamic bank, which will complete a full year (hawl) after three months, and is the zakat paid from the profits?

Zakat is obligatory on a minor's wealth if it reaches the nisab and a full year has passed over it. The nisab is equivalent to 85 grams of gold or 595 grams of silver. If the wealth is invested, zakat is obligatory on both the principal and its profits. One-quarter of one-tenth (2.5%) of the total should be given at the end of each year. It is permissible to pay this obligatory amount from the principal, or from the profits, or from any other money the minor owns.