Please read the following stories:  

Story 1:

          It is related that one Yunus ibn Ubaid, who had in his shop suits of clothes at different prices. One kind was prized at four hundred per suit, and another at two hundred. When Yunus went to prayers he left his nephew to keep the shop. Meanwhile, a Bedouin came in, looking for a suit at four hundred. The nephew showed him one of those priced at two hundred. The Bedouin, satisfied with the suit for that price, bought it and went away with it over his arm. On the way Yunus met him and recognizing the suit, asked him, “How much did you pay for this?” “Four hundred dirham.” “It is not worth more than two hundred”, said Yunus, “Come back with me till I give you back the extra money.” “But in our district even this is worth five hundred”, said the Bedouin, “and I am satisfied with it.” “Never mind that; sincerity in religion is worth more than this world and all that it contains.” So he took the Bedouin back to the shop and returned to him two hundred. When his nephew remonstrated with him, he said, “Are you not ashamed?” Have you no reverence to Allah?”    

Story 3:

         Once a person came to a Muslim city to purchase a herd of sheep. A devoted Muslim sold his herd of sheep to him. The buyer returned taking with him what he had purchased. After a while the Muslim who sold his herd, suddenly realized that he had forgotten to mention the defect in one of his goats, which was sold for a full price. Immediately he followed the steps of the buyer to catch him and return the money for that goat. It took many days to find him and finally found him. The buyer was surprised to see the seller there and inquired him about his travel. The seller told that he had forgotten to mention the defect of one of the goats sold and wanted to return the money to him. “It doesn’t matter,” he told. “No, you have to accept the money back., otherwise I cannot answer before Allah.” After paying the money back he returned.   

Story 4:

         It is yet another anecdote from the life of Abu-Hanifa. He had a business partner named Hafs. Once it so happened, that a damage was noticed in a particular garment meant for sale. Abu Hanifa showed Hafs the fault in public and told him not to sell it. But the greedy Hafs sold that piece too, along with the others without informing the buyer about the damage. It is said that the prize was 30 to 35 thousand dirhams. Abu Hanifa came to know about it and when he was offered his share, he refused to accept it. He sent a message to his partner, making him responsible for finding the customer. The partner did not show any sign of apology and finally Abu Hanifa had only to dissolve his business partnership with him. Furthermore he calculated whatever he had earned so far with Hafs, and as he disdained to add this tainted money to his honest money, gave it all away in alms.  

         Such was the spirit of Muslims in those days to be honest in their business.

         What lessons can we learn from these illustrious stories?