Allah's Messenger (ﷺ) forbade Muhaqala, Mukhadara, Mulamasa, Munabadha and Muzabana. (See glossary and previous Hadiths for the meanings of these terms.)
Sahih al-Bukhari Book 34, Hadith 153
← Previous Hadith The Prophet (ﷺ) said, "Whoever pollinates date palms and then sells them, the fruits will belong to him unless the buyer stipulates that the fruits should belong to him (and the seller agrees).

Sahih al-Bukhari Book 34, Hadith 152 Next Hadith → Anas said, "The Prophet (ﷺ) forbade the selling of dates till they were almost ripe." We asked Anas, "What does 'almost ripe' mean?" He replied, "They get red and yellow. The Prophet (ﷺ) added, 'If Allah destroyed the fruits present on the trees, what right would the seller have to take the money of his brother (somebody else)?' "

Sahih al-Bukhari Book 34, Hadith 154