(14) باب تَحْرِيمِ بَيْعِ الرُّطَبِ بِالتَّمْرِ إِلاَّ فِي الْعَرَايَا
Bushair b. Yasir reported on the authority of some of the Companions of Allah's Messenger (may peace be upon hinn) from among the members of his family that he forbade (the direct exchange of a commodity having different qualities) but with the change that Ishaq and Ibn al-Muthanna used the word Zabn in place ot Riba and Ibn Abu 'Umar used the word Riba (interest).
Reference: Sahih Muslim 1540 c
In-book reference: Book 21, Hadith 88
USC-MSA web (English) reference(deprecated numbering scheme): Book 10, Hadith 3689