Hadith 4519
Chapter 28: Selling Fruits Before Their Condition Is Known - كتاب البيوع
أَخْبَرَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا اللَّيْثُ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، عَنْ رَسُولِ اللَّهِ صلى الله عليه وسلم قَالَ " لاَ تَبِيعُوا الثَّمَرَ حَتَّى يَبْدُوَ صَلاَحُهُ " . نَهَى الْبَائِعَ وَالْمُشْتَرِيَ .
; It was narrated from Ibn 'Uar that the Messenger of Allah said:
"Do not sell fruits until their condition is known. And he forbade (both) the seller and the purchaser (to engage in such a transaction).
Reference : Sunan an-Nasa'i 4519
In-book reference : Book 44, Hadith 71