It was narrated from Ibn 'Umar that the Messenger of Allah (ﷺ) said: Do not sell fruits until they have ripened. And he forbade (both) the seller and the purchaser (to engage in such a transaction).
It was narrated from Abu Hurairah that the Messenger of Allah (ﷺ) said: Do not sell fruits until they have ripened. '
It was narrated from Jabir that : the Prophet (ﷺ) forbade selling fruits until they have ripened.
It was narrated from Anas bin Malik that : the Messenger of Allah (ﷺ) forbade selling fruits until they have changed the color, and selling grapes until they have turned black, and selling grains until they have hardened.