The ruling on not paying a worker his wage because he is a disbeliever

Question:
I employed two men to do some work in my house, and I knew that they were mushrikin (those who associate partners with Allah), their religion being Buddhism. When the work was finished, I did not pay them their wages. I told them afterwards, and I did not want to settle accounts with them because they were mushrikin. I thought that my action was part of al-wala' wa al-bara' (loyalty and disavowal), and that they were serving the Muslims, and that we have honor. Is my action correct, or is it obligatory for me to pay them their wages? And what should I do, since I do not know where they are now?

Answer:
Your work is not correct, and this is injustice. Injustice is not permissible, whether against a Muslim or against a disbeliever. Allah (Mighty and Majestic) commanded the fulfillment of contracts This is a contract between you and a person, and you are required to fulfill it. If he did the work, what entitles you to withhold his wage, even if he is a disbeliever?
And He, the Exalted, says: [from Surat al-Ma'idah]. You hired them from the beginning, so as long as you hired them, you must fulfill your obligation. This is not permissible in the Shari'ah nor in the morals of Muslims. This may lead to turning people away from the religion of Allah, because the disbelievers will say about us that we deceive people, eat their money, and employ them without right. This is absolutely not permissible. This is ignorance on the part of the person who did it. He must seek forgiveness from Allah and return this right to those who are entitled to it, and pay them their wages, either to them directly or by sending it to them. It is possible that he knows, for example, their country and can find out through recruitment agencies. The agency that recruited them knows their addresses and where they are, or their embassy, the embassy of their country, can deliver this to you.