Is it halaal to cosume food bought from a muslim restaurant even if we know the owner of the restaurent involves in gambling?

Question ID: 
1043
Abd*** asks:

Question

Due to a recent incident in our country,is it halaal to consume food bought from a muslim restaurant even if we know the owner of the restaurant involves in gambling (horse riding,casino)or rumored to be having a hand in drug dealing.ALLAH knows best.

Answer

A good Muslim who is concerned of his Imaan and Deen would abstain from everything which is doubtful as stated in Hadith.