Is it permissible to take back a loan from a man most of whose wealth is haraam?

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Check below answers in case you are looking for other related questions:
Taking from one who deals in haraam things
Making use of a house that was built with money earned from alcohol

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Related Answers:
What should be done with interest?
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Taking from one who deals in haraam things
Making use of a house that was built with money earned from alcohol

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