(91) باب بَيْعِ الزَّرْعِ بِالطَّعَامِ كَيْلاً
Narrated Ibn `Umar:
Allah's Messenger (ﷺ) forbade Al-Muzabana, i.e. to sell ungathered dates of one's garden for measured dried dates or fresh ungathered grapes for measured dried grapes; or standing crops for measured quantity of foodstuff. He forbade all such bargains.
Reference: Sahih al-Bukhari 2205
In-book reference: Book 34, Hadith 151
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 3, Book 34, Hadith 407