It is narrated from Hazrat Amrah bint Abdur Rahman that the Messenger of Allah, peace and blessings be upon him, forbade the sale of fruits until the fear of calamity has passed.
Imam Malik, may Allah have mercy on him, said that selling fruits before their goodness is known is a deceptive sale, from which the Prophet (peace be upon him) forbade.
Hadith Referenceموطا امام مالك رواية يحييٰ / كتاب البيوع / 1314