Lending to a dealer who owns a farm on the condition that he does not sell his produce except to him

Question:
This questioner, who owns a farm, says: Shaykh, I borrowed a sum of money from a dealer, and the dealer stipulated that if I wanted to sell anything from my farm, I must bring it to him so that he can sell it. Is this condition permissible?

Answer:
Yes, this is not permissible. This is a condition that is not permissible, because a loan is a good loan in which one seeks reward from Allah, fulfilling the need of a Muslim without seeking any worldly benefit from it. The fact that he restricts him from selling anything from his farm except to him, so that he benefits from it, is a condition for benefit in the loan, and that is riba (usury or interest). It has come in the hadith: and the scholars have agreed upon this. Yes.