[Extract from Preface of Islam and Business Ethics by Dr S M Hasanuzzaman, published by the Institute of Islamic Banking and Insurance, London, UK 2003]

The success of a trader depends on salesmanship, in order to achieve a quick turnover of whatever he has in stock. Good salesmanship does not necessarily involve falsity and deceit. It does, however, usually involve exaggeration, the use of puns, pomposity and digression. Another technique of salesmanship involves haggling, which also implies the customer's partial or conditional acceptance of the deal. Along with such tactics of salesmanship, claims are often made about merchandise that are far from the truth and made with a view to deceiving the customer. The Prophet not only condemned such practices but also emphasised good manners, leniency and courtesy.


Source : islamic-banking.com