The Book of Transactions
21/14. Chapter:
The prohibition of selling fresh dates in exchange for dry dates except in the case of 'Araya
Sahih Muslim
حَدَّثَنِي يَحْيَى بْنُ مَعِينٍ، وَهَارُونُ بْنُ عَبْدِ اللَّهِ، وَحُسَيْنُ بْنُ عِيسَى، قَالُوا حَدَّثَنَا أَبُو أُسَامَةَ، حَدَّثَنَا عُبَيْدُ اللَّهِ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، قَالَ نَهَى رَسُولُ اللَّهِ صلى الله عليه وسلم عَنِ الْمُزَابَنَةِ وَالْمُزَابَنَةُ بَيْعُ ثَمَرِ النَّخْلِ بِالتَّمْرِ كَيْلاً وَبَيْعُ الزَّبِيبِ بِالْعِنَبِ كَيْلاً وَعَنْ كُلِّ ثَمَرٍ بِخَرْصِهِ .
Ibn 'Umar (Allah be pleased with them) reported Allah's Messenger (ﷺ) having forbidden Muzabana, and Muzabana is the selling of dry dates by measure for fresh dates and the selling of raisins by measure for grapes and selling of all Ports of fruits on the basis of calculation.
Reference : Sahih Muslim 1542dIn-book reference : Book 21, Hadith 95USC-MSA web (English) reference : Book 10, Hadith 3696