How can a Muslim absolve himself of the rights of unknown or deceased people, such as stealing simple things or damaging property in childhood? Is it permissible to give charity equivalent to their value with the intention that it is on behalf of their owners? Does this also include absolving those who participated with him in these actions?

Whoever encroaches upon another's right by theft, usurpation, or similar acts, must restore it to its owner, unless the owner absolves him, for the Prophet, peace and blessings be upon him, said: "The hand is responsible for what it takes until it returns it." If the owner of the right is known, it must be delivered to him. If the owner is unknown, or if it is impossible to deliver the right to him, then its value must be given in charity on his behalf. Caution should be exercised regarding the unknown amount, and repentance erases what came before it. There is no difference between a minor and an adult in terms of liability; liability is incumbent upon every transgressor, even if the minor is not sinful. If you fulfill the right on behalf of your companions, their financial obligations are cleared, but the sin of transgression remains upon them if they have not repented.