Miscellaneous rules on Transactions

2240. If a seller informs the buyer about his cost price of a commodity, he should tell him about all factors which would affect the rise or fall in the price of the commodity, even if he may sell it at the same price or at a price less than that; for example, he should tell the buyer.

2241. If one gives a commodity to another person, and fixes its price and says: you sell this at such a price and if you sell more, it belongs to you, then the extra part belongs to that other person. Also, if he says: I sell this commodity to you at this price, and the other person says: I agree. Or if one gives a commodity for the purpose of selling to some one else, and he takes it for that purpose, the extra amount belongs to him.

2242. If a butcher sells the meat of a female animal saying that it is the meat of a male animal, he commits a sin. Hence, if he falsely specifies the meat saying: “I am selling this meat of a male of a male animal” the buyer can cancel the transaction. And in case, he does not specify it, the butcher must supply the meat of a male animal, if the buyer is not willing to accept the meat, which has been given to him.

2243. If a buyer tells the draper that he wants a cloth of fast color, and the draper sells him a cloth whose color fades, the buyer can cancel the transaction.

2244. Swearing in the matter of transaction is Makrooh, if it is true. and Haraam, if it is false.