The ruling on dissolving a partnership if a forbidden transaction occurs within the partnership

Question:
He says: Honorable Shaykh, may Allah grant you success. If two men partner in a specific business, and one of the partners conducts forbidden transactions without the other partner’s knowledge, is it permissible for him, once he learns of it, to dissolve the partnership if it is still ongoing?

Answer:
Yes. They say it is not permissible to partner with one who deals in what is forbidden. It is not permissible for him to partner with one who deals in what is forbidden. So if he learns that he deals in what is forbidden, the partnership is invalid.