If you know for sure he is returning your money by using the money he earned from haram sources you should not accept it; however, you are not supposed to act on mere suspicion.
If you have no evidence to prove he has earned money in the haram way you are allowed to accept it. Everyone is innocent until proven otherwise.
DISCLAIMER
Views expressed by hosts/guests on this program (live dialogue, Facebook sessions, etc.) are their own and their appearance on the program does not imply an endorsement of them or any entity they represent.
Views expressed by hosts/guests on this program (live dialogue, Facebook sessions, etc.) are their own and their appearance on the program does not imply an endorsement of them or any entity they represent.