The Book of Transactions (Kitab Al-Buyu`) 
Muslim :: Book 10 : Hadith 3632
Anas b. Malik (Allah be pleased with him) reported: We were forbidden that a townsman should sell for a man of the desert, even if he is his brother or father.
The Book of Transactions (Kitab Al-Buyu`)
Muslim :: Book 10 : Hadith 3632
Anas b. Malik (Allah be pleased with him) reported: We were forbidden that a townsman should sell for a man of the desert, even if he is his brother or father.