Is illicit money subject to Zakah (obligatory charity)?
What is the ruling on giving in charity and financing marriage from illicit money?
If a Muslim earns illicit money while knowing it is ill-gotten at the time he acquires it, he has to repent to Allah and get rid of such wealth by donating it to a public enterprise other than building a Masjid (mosque) or give it to the poor and the needy. In brief, it is by no means permissible to keep such money while knowing that it is ill-gotten. If the money is acquired by robbery, plunder or theft, it should be given back to its rightful owners or their inheritors through whatever means if they are known; otherwise, if they are unknown, it should be given in charity on their behalf. (Part No. 11; Page No. 205) May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.