Sahih Bukhari 2131

Narrated Tawus: Ibn `Abbas said, Allah's Apostle forbade the selling of foodstuff before its measuring and transferring into one's possession. I asked Ibn `Abbas, How is that? Ibn `Abbas replied, It will be just like selling money for..

Narrated Ibn `Umar: The Prophet said, He who buys foodstuff should not sell it till he has received it. ..

Narrated Az-Zuhri from Malik bin Aus: that the latter said, Who has change? Talha said, I (will have change) when our storekeeper comes from the forest. Narrated `Umar bin Al-Khattab: Allah's Apostle said, The bartering of gold for silver..

Narrated Ibn `Abbas: The Prophet forbade the selling of foodstuff before receiving it. I consider that all types of sellings should be done similarly. ..

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. ..