The Prophet forbade Muzabana; and Muzabana is the selling of fresh fruit (without measuring it) for something by measure on the basis that if that thing turns to be more than the fruit, the increase would be for the seller of the fruit, and if it turns to be less, that would be of his lot.
Narrated Ibn Umar from Zaid bin Thabit that the Prophet allowed the selling of the fruits on the trees after estimation (when they are ripe).
Allah's Apostle forbade Muzabana; and Muzabana means the selling of fresh dates (on the trees) for dried dates by measure and also the selling of fresh grapes for dried grapes by measure.
Allah's Apostle forbade Muzabana; and Muzabana is the selling of fresh dates for dried old dates by measure, and the selling of fresh grapes for dried grapes by measure.
The Prophet forbade the sales called Al-Mukhabara, Al-Muhaqala and Al-Muzabana and the selling of fruits till they are free from blights. He forbade the selling of the fruits except for money, except the Araya.
Allah's Apostle forbade the sale of Muzabana, i.e. selling of fruits for fruits, except in the case of Araya; he allowed the owners of Araya such kind of sale.
Narrater: (Rafi bin Khadij and Sahl bin Al Hathma) Book: (Sahi Bukhari) Vol: (3) Hadith No: (569)
Sales and Trade
Allah's Apostle forbade Al-Muzabana, i.e. to sell ungathered dates of one's garden for measured dried dates or fresh ungathered grapes for measured dried grapes; or standing crops for measured quantity of foodstuff. He forbade all such bargains.