What is the ruling on selling a portion of a shop, owned by a father and son with lawful money, to another portion owned by the son's brother with unlawful money? And are the son, the seller, and the buyer absolved of responsibility after this sale? And what is the ruling on the son's money (the lawful money), and is it tainted by doubt? What is the ruling on the brother (owner of unlawful money) working as an employee for his brother (owner of lawful money), while receiving more than half of the profit, so that he can rid himself of the amount of his share in another shop? And is the brother (owner of unlawful money) considered to be in a state of necessity? And if everything the son did was permissible, why does he feel fear when eating from this money, even though his capital is lawful?
If someone acquired unlawful money and repented, then if the money was spent, there is nothing upon him. But if the money is still in his possession, he must dispose of it by spending it on charitable causes. If he is in need, he may take from it what suffices his need and donate the rest. It is permissible to give the repentant person from this unlawful money what can serve as capital for him to trade with, though it is preferable to return it to the poor and needy. What your brother did, by trading with unlawful money and then disposing of it after Allah provided for him, is a correct action, and he is not required to dispose of the profit generated from it.
Summarized from the full answer at Ftawy · reviewed Sep 2, 2026
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