Language:
كتاب البيوع
34  
Sales and Trade
(82)
Chapter: The sale called Al-Muzabana; which is the sale of dried dates for fresh ones (that are still on the trees), and dried grapes for fresh grapes and the sale called Al-‘Araya (i.e., the selling of ripe fresh date, still over the palms, by means of estimation, for dry dates).
(82)
باب بَيْعِ الْمُزَابَنَة، وَهْيَ بَيْعُ الثَّمَرِ بِالتَّمْرِ وَبَيْعُ الزَّبِيبِ بِالْكَرْمِ وَبَيْعُ الْعَرَايَا
Sahih al-Bukhari 2186

Narrated Abu Sa`id Al-Khudri:

Allah's Messenger (ﷺ) forbade Muzabana and Muhaqala; and Muzabana means the selling of ripe dates for dates still on the trees.

حَدَّثَنَا عَبْدُ اللَّهِ بْنُ يُوسُفَ، أَخْبَرَنَا مَالِكٌ، عَنْ دَاوُدَ بْنِ الْحُصَيْنِ، عَنْ أَبِي سُفْيَانَ، مَوْلَى ابْنِ أَبِي أَحْمَدَ عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ ـ رضى الله عنه أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم نَهَى عَنِ الْمُزَابَنَةِ وَالْمُحَاقَلَةِ‏.‏ وَالْمُزَابَنَةُ اشْتِرَاءُ الثَّمَرِ بِالتَّمْرِ فِي رُءُوسِ النَّخْلِ‏.‏
Reference : Sahih al-Bukhari 2186
In-book reference : Book 34, Hadith 133
USC-MSA web (English) reference : Vol. 3, Book 34, Hadith 391
  (deprecated numbering scheme)