Sahih Bukhari 2135

Narrated Ibn `Umar: The Prophet said, The buyer of foodstuff should not sell it before it has been measured for him. Isma`il narrated instead, He should not sell it before receiving it. ..

Narrated Ibn `Umar: I saw the people buy foodstuff randomly (i.e. blindly without measuring it) in the lifetime of Allah's Apostle and they were punished (by beating), if they tried to sell it before carrying it to their own houses. ..

Narrated Aisha: Rarely did the Prophet fail to visit Abu Bakr's house everyday, either in the morning or in the evening. When the permission for migration to Medina was granted, all of a sudden the Prophet came to us at noon and Abu Bakr was..

Narrated `Abdullah bin `Umar: Allah's Apostle said, Do not urge somebody to return what he has already bought (i.e. in optional sale) from another seller so as to sell him your own goods. ..

Narrated Abu Huraira: Allah's Apostle forbade the selling of things by a town dweller on behalf of a desert dweller; and similarly Najsh was forbidden. And one should not urge somebody to return the goods to the seller so as to sell him his own..

Narrated Jabir bin `Abdullah: A man decided that a slave of his would be manumitted after his death and later on he was in need of money, so the Prophet took the slave and said, Who will buy this slave from me? Nu'aim bin `Abdullah bought him..