Ruling on the Iftar invitation of an interest-consumer and bribe-taker?
Such a Muslim whose income is doubtful, meaning he consumes interest, takes bribes, or generates income from other illegitimate political means, if the majority of such a person's income is Halal (permissible), then it is permissible to accept his Iftar invitation, and if the majority of his income is Haram (impermissible), then it is not permissible to accept his Iftar invitation. (Fatawa Ihya ul Uloom, pg: 237) (Book: Kitab an-Nawazil / Vol: 6 / Pg: 347)