A and B were partners in the business of manufacturing of beauty products and toiletries. B was a sleeping partner. A clause in the Partnership deed prohibited partners from buying and selling beauty products of a particular brand X on behalf of the firm, as it was hazardous to customers. A, the acting partner ordered the delivery of certain beauty products of brand X and thereafter, sold the products to Mr. Y for Rs. 20,000. When the customer used the product, he suffered from skin burns. He sued B and claimed the amount of Rs. 20,000 from B, the sleeping partner. In this case –