حَدَّثَنَا عَبْدُ الرَّحْمَنِ عَنْ مَالِكٍ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ نَهَى عَنْ الْمُزَابَنَةِ وَالْمُزَابَنَةُ اشْتِرَاءُ الثَّمَرِ بِالتَّمْرِ كَيْلًا وَالْكَرْمِ بِالزَّبِيبِ كَيْلًا
مسند امام احمد بن حنبل · Hadith 4528
It was narrated from Ibn "Umar that the Messenger of Allah (PBUH) forbade muzaabanah. Muzaabanah refers to selling fresh dates (on the tree) for dried dates by measure, and selling grapes (on the vine) for raisins by measure.
Translated by Dr. Muhammad Muhsin Khan · Reviewed by Islamic University of Madinah · Published March 2020