The obligation of one who repents and is unable to return the rights of people

Question:
A man used to commit many sins, including taking people's money without right. He has repented from all the sins except for the people's money, as he is poor and unable to pay it. What should he do?

Answer:
It is obligatory for him to seek their forgiveness. If they have the power to harm him, it is obligatory for him to repent to Allah with sincere repentance, resolve to return the money to them, and strive to seek them out if he is able to do so, hoping they will forgive him. If they do not forgive him, let him strive until he pays them in full. If he cannot pay them in full, Allah will pay it off on his behalf on the Day of Resurrection, if he is sincere in that. He must strive and pay whatever is possible of it.
He should do whatever he can of the deeds that return the money until he reaches his capacity in that. And it is not permissible for him to spend beyond his capacity. So fear Allah, and what they have denied...