What is the ruling on one who places his money in the bank on the pretext of theft? Is his invitation to be accepted? And what is the Muslim's position toward one who does that?

The questioner : Some people place their money, which is lawful, in banks, fearing it from theft, and they take its interest. Naturally, the lawful money has become mixed with the unlawful. So, do we accept their invitation to us, or do we refuse? And if they are relatives, do we maintain ties with them? And how should our ties with them be?

The Shaykh : It is obligatory that the maintenance of ties with a relative who deals in riba (usury or interest) be the maintenance of a Muslim who is concerned for his Muslim brother. He should constantly advise him and remind him of the consequences of what they are doing, like his saying (peace and blessings be upon him) regarding riba: And it is not befitting for them to be deceived by the fact that their riba-based money grows and increases, because Allah (Mighty and Majestic), who created mankind and created what they do, says: which is contrary to what these usurers imagine. They should be treated in this manner with advice and admonition. It is not befitting to rush to boycott them and cut ties with them due to the corruption of the society in which we live. Because if you open the door to boycotting and cutting ties, there will be few people left around you, and at that time, it would be better for you to isolate yourself from all people, atop a mountain. And he (peace and blessings be upon him) said: The one who is invited to their food should feel a sense of discomfort regarding their food, but at the same time, he should remember what we are saying about the obligation of maintaining ties with them and reminding them of the violation they are in. If that is the case, we see no harm in eating the food of these people or accepting their invitation. However, if their invitation is always and forever accepted, and the one who accepts their invitation does not advise them with advice, then this is hypocrisy. And this is what will lead to the consequence that all Muslims will be afflicted with punishment from their Lord because of their leaving off enjoining good and forbidding evil.