IF ONE IS FORBIDDEN BY VOW TO BENEFIT FROM HIS NEIGHBOUR, AND THE LATTER POSSESSES A BATH-HOUSE etc. How much is meant by AN INTEREST THEREIN? — R. Nahman said: A half, third, or a quarter, but not less. Abaye said, Even for less, he is forbidden. Under what conditions is he permitted? If he [the lessee] rents it in return for [the payment of] the land-tax.