Hadith 4525
Chapter 28: Selling Fruits Before Their Condition Is Known - كتاب البيوع
أَخْبَرَنَا مُحَمَّدُ بْنُ عَبْدِ الأَعْلَى، قَالَ حَدَّثَنَا خَالِدٌ، قَالَ حَدَّثَنَا هِشَامٌ، عَنْ أَبِي الزُّبَيْرِ، عَنْ جَابِرٍ، قَالَ نَهَى رَسُولُ اللَّهِ صلى الله عليه وسلم عَنْ بَيْعِ النَّخْلِ حَتَّى يُطْعَمَ .
It was narrated that Jabir said:
"the Messenger of Allah forbade selling the fruit of date palms until they are fit to eat."
Reference : Sunan an-Nasa'i 4525
In-book reference : Book 44, Hadith 77