Sell it to me for an 'uqaya. I said: No. He again said: Sell it to me. So I sold it to him for an 'uqaya, but made the stipulation that I should be allowed to ride back to my family. Then when I came to (my place) I took the camel to him and he paid me its price in ready money. I then went back and he sent: (someone) behind me (and as I came) he said: Do you see that I asked you to reduce price for buying your camel. Take your camel and your coins; these are yours.
Sahih Muslim Book 22, Hadith 137