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.
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?”
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.”
Jabir said that God's Messenger forbade selling fruit years ahead, and commanded that unforeseen loss be remitted in respect of what is affected by blight.
