What is the ruling on eating from the home of a brother whose entire wealth is forbidden?

The questioner : He asked me about his brother who works in a housing bank, and all his wealth is, of course, forbidden, as he has no other income, so going to his home and eating things from his home.

Another questioner : ... Go on, go on.

The questioner : So, is it forbidden or permissible to eat from his brother's home?

The Shaykh : It is not permissible to eat from this wealth, except if, meaning, out of kindness to his brother and gentleness with him, and in order to fulfill the obligation of advising him, he eats only a small amount, not eating until he is full as if he is eating from lawful food; yes, but behind this courtesy is a purpose, which is fulfilling the duty of advice. If he does that, it is permissible; otherwise, it is not.

The questioner : And the man continued— for example— continued for how long?

The Shaykh : He continued to boycott him.

The questioner : To boycott him.

The Shaykh : At least he should boycott his food.

The questioner : Yes, he should boycott his food.

The Shaykh: Yes.