´It was narrated that Anas bin Malik said:` "It was forbidden to us for a town-dweller to sell for a desert-dweller, even if he was his father or brother." (Sahih )
Hadith ReferenceSunan an-Nasa'i / The Book of Financial Transactions / Hadith: 4498
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:متفق عليه