He reported God's Messenger as saying, “If anyone buys grain he must not sell it till he has received it in full.” A version by Ibn ‘Abbas has, ‘‘till he measures it out.”
Ibn ‘Umar said they used to buy grain in the upper part of the market and sell it in the same spot, but God’s Messenger forbade them to sell it there before removing it.
Abu Dawud transmitted it. I have not found it in the two Sahihs.
Ibn ‘Abbas said what the Prophet forbade was that grain should be sold before it had been received. Ibn ‘Abbas said, “I do not think this applies to every commodity, but only to things of that type.”
He reported God's Messenger as saying, “If you were to sell something to your brother and it was smitten by blight it would not be allowable for you to take anything from him. Why should you take your brother's property unjustly?”
