A Bedouin came to the Holy Prophet saying, “I have several camels for sale but I have no idea of their price in the market of Medina. I am afraid of being deceived by buyers. Would you come to the market with me giving your knowledge in this field?” The Holy Prophet said, “Bring the camels to me and present them one by one.” He did so and the Holy Prophet priced them each.
The Bedouin went to the market and sold the camels for the price the Holy Prophet had said. Coming back, he said, “You guided me and I made a huge profit. Now accept something from me and take of this money whatever you wish.”
The Holy Prophet said, “I expect nothing.” The Bedouin said, “Accept a gift from me.” The Holy Prophet said, “I am not n need of anything.” The Bedouin insisted. The Holy Prophet said, “Now that you insist, bring me a female camel which gives milk provided that you have not separated it from her young. (Sharaf al-Nabi: 75)