Every partner is a debtor of the partnership for whatever he may have promised to contribute thereto.
He shall also be bound for warranty in case of eviction with regard to specific and determinate things which he may have contributed to the partnership, in the same cases and in the same manner as the vendor is bound with respect to the vendee. He shall also be liable for the fruits thereof from the time they should have been delivered, without the need of any demand. (1681a)