The ruling on acting as a broker to lease a building to a riba (usury or interest) bank, and the ruling on selling it to another

Question:
He says: Honorable Shaykh, may Allah grant you success. A person owns a commercial building and has leased it to a riba bank. Now the owner of the building wants to sell it to another person. The question is: if I act as a broker between the seller and the buyer, will I be sinful? Knowing that the bank has no relation to the sale, not in the slightest?

Answer:
If you act as a broker to lease it to the bank, it is not permissible; because this is assisting in riba, in usury. But if you act as a broker in selling it to someone other than the bank, in a known, honest sale, there is nothing wrong with it. Yes.