The Messenger of Allah (ﷺ) as saying: If anyone buys a grain, he should not sell it until he takes possession of it. Sulaiman b. Harb said: Until he receives it in full. Musaddad added: Ibn 'Abbas said: And I think that everything is like grain.
Sunan Abi Dawud Book 24, Hadith 82
← Previous Hadith The Messenger of Allah (ﷺ) as saying: If anyone buys grain, he should not sell it until he measures it. Abu Bakr added in his version: I asked Ibn 'Abbas: Why ? He replied: Do you not see that they sell (grain) for gold, but the grain is still with the seller.

Sunan Abi Dawud Book 24, Hadith 81 Next Hadith → I saw that during the time of the Messenger of Allah (ﷺ) the people were beaten when they bought grain on the same spot and sold it there without moving it to their houses.

Sunan Abi Dawud Book 24, Hadith 83