Sahih Bukhari 2156

Narrated Jarir: I have given a pledge of allegiance to Allah's Apostle for to testify that None has the right to be worshipped but Allah, and Muhammad is His Apostle, to offer prayers perfectly, to pay Zakat, to listen to and obey (Allah's and His..

Narrated Tawus: Ibn `Abbas said, Allah's Apostle said, 'Do not go to meet the caravans on the way (for buying their goods without letting them know the market price); a town dweller should not sell the goods of a desert dweller on behalf of the..

Narrated `Abdullah bin `Umar: Allah's Apostle forbade the selling of the goods of a desert dweller by a town person. ..

Narrated Abu Huraira: Allah's Apostle said, A buyer should not urge a seller to restore a purchase so as to buy it himself, and do not practice Najsh; and a town dweller should not sell goods of a desert dweller. ..

Narrated Anas bin Malik: We were forbidden that a town dweller should sell goods of a desert dweller. ..

Narrated Abu Huraira: The Prophet forbade the meeting (of caravans) on the way and the selling of goods by an inhabitant of the town on behalf of a desert dweller. ..