Food bought from interest money

 

We know that Zaid does not perform namaz and Omar takes interest in money although we have knowledge about their situation. Is it permissible to eat their food?

If we know that the food Omar is providing is from the interest money, it is not permissible to eat his food in any circumstances. But if we know that the food will be provided from a lawful income then it is correct to eat his food. However, if it is mixed with a lawful and unlawful income then it will be looked at the greater amount.

My Sister, volume 1No 10. page 7