حَدَّثَنَا مُحَمَّدُ بْنُ الْمُثَنَّى، حَدَّثَنَا حَجَّاجٌ، حَدَّثَنَا حَمَّادٌ، عَنْ حُمَيْدٍ، عَنْ أَنَسِ بْنِ مَالِكٍ، أَنَّ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ نَهَى عَنْ بَيْعِ الثَّمَرَةِ حَتَّى تَزْهُوَ وَعَنْ بَيْعِ الْعِنَبِ حَتَّى يَسْوَدَّ وَعَنْ بَيْعِ الْحَبِّ حَتَّى يَشْتَدَّ .
It was narrated from Anas bin Malik that : the Messenger of Allah (PBUH) forbade selling fruits until they have changed the color, and selling grapes until they have turned black, and selling grains until they have hardened. Translation Not Available
Book Ref: Sunan Ibn Majah Book 12 Hadith 2217
Web Ref: Sunan Ibn Majah Vol 3 Book 12 Hadith 2217