Aslam

(a) Not to make much profit. Sale is for profit in a business and there is no profit unless a thing is charged more than the price by which it is bought. To take less profit is 'Ihsan' doing good but to take greater profit is not unlawful. Once a man bought a bundle of cloth from the salesman of Eunus-b-Obaid for 400 dirhams which was to be sold for 200 dirhams to the buyer.
He said to his saleman : Why have you not loved for another which you love for yourself ? Return half. Hazrat Ali used to roam in the bazar of Kufa with a stick and say : O merchants, take your dues and return the dues of others. Don't refuse little profit or else you will be deprived of greater profit. Hazrat Abdur Rahman- b-Auf was asked : What is the reason of your success ?
He said ; Three things — (1) I never refused any profit (2) I sold everything in cash and not on credit. (3) I did not make delay in selling a thing.

(b) To suffer loss. If a buyer buys from a poor man, there is no harm to buy at a higher price to show good to him and to enter into this prayer of the Prophet : May God like a person who makes his buy easy and purchase easy ? When he purchase a thing from a rich man, he may search for additional profit.

56 The Book of Wordly Usages Vol-II

Hazrat Omar did not do any deceit and nobody could ever deceive him.