Conditions of Commodity and its Substitute
Issue No.1782- The commodity which is sold, and the thing which is gained in exchange, should fulfil the following conditions:1) Its quantity should be known by means of weight, volume or number.2) It should be deliverable. Therefore, selling an animal which has run away is not correct as an obligatory precaution, even if it is sold along with a deliverable item. 3) One should specify the features of the commodity which influence the value of the commodity or make it desirable to people.4) Another person should not have any right to the commodity or the item gained in exchange. Therefore, a property that has been put up as collateral cannot be sold without permission. The buyer can also give the profit of his own property instead of money. For example, if a carpet is bought and in return, the profit of his house is given for one year, The buyer and seller are free in fixing the price or rate of a commodity but if, in some cases, this privilege leads to corruption and disorder in the economic system of the Islamic society, the Islamic judge can fix the rate and make others deal on its basis.
