Article 1646 of the French Civil Code

If the seller was unaware of the defects in the thing, he will only be liable to make restitution of the price, and to reimburse the purchaser for the costs occasioned by the sale.

Original in French 🇫🇷

Article 1646

Si le vendeur ignorait les vices de la chose, il ne sera tenu qu’à la restitution du prix, et à rembourser à l’acquéreur les frais occasionnés par la vente.