Liaison office of Grand Ayatullah Sayyid Ali Al Sistani (L.M.H.L) in London, Europe, North and South America.
2145. 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
(i.e. at the cost price) or at a price less than that; for example, he should
tell the buyer whether he has purchased the property against cash payment or on
credit. And if he does not give the particulars of the property, and the buyer
knows about them later, he can cancel the transaction.
2146. If a person gives a commodity to another person, and fixes its
price and says: "Sell this commodity at this price, and the more you sell, you
will be paid your commission." If he sells the commodity for higher price, the
excess of money realised will be that of the owner, and he will be entitled only
to the commission from the owner.
But if the arrangement is by way of
granting a reward, when the owner says: "If you sell this commodity at a price
higher than that, the excess of proceeds will be your property" there is no harm
in it.
2147. 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 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.
2148. If a buyer tells the draper that he wants a cloth of fast
colour, and the draper sells him a cloth whose colour fades, the buyer can
cancel the transaction.
2149. Swearing in the matter of transaction is Makrooh, if it is true,
and haraam, if it is false.