Messenger of Allah ﷺ forbade Muhaqala, Mukhadara, Mulamasa, Munabadha and Muzabana. (See glossary and previous Hadiths for the meanings of these terms.)  

أَنَّهُ قَالَ نَهَى رَسُولُ اللَّهِ ﷺ عَنِ الْمُحَاقَلَةِ وَالْمُخَاضَرَةِ وَالْمُلاَمَسَةِ وَالْمُنَابَذَةِ وَالْمُزَابَنَةِ  

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)?' "  

أَنَّ النَّبِيَّ ﷺ نَهَى عَنْ بَيْعِ ثَمَرِ التَّمْرِ حَتَّى تَزْهُوَ فَقُلْنَا لأَنَسٍ مَا زَهْوُهَا قَالَ تَحْمَرُّ وَتَصْفَرُّ أَرَأَيْتَ إِنْ مَنَعَ اللَّهُ الثَّمَرَةَ بِمَ تَسْتَحِلُّ مَالَ أَخِيكَ