(9) باب تَحْرِيمِ بَيْعِ صُبْرَةِ التَّمْرِ الْمَجْهُولَةِ الْقَدْرِ بِتَمْرٍ
Jabir b. Abdullah (Allah be pleased with them) is reported to have said that Allah's Messenger (ﷺ) forbade the sale of a heap of dates the weight of which is unknown in accordance with the known weight of dates. (ID)
Reference (ID): Sahih Muslim 1530 a (ID)
In-book reference (ID): Book 21, Hadith 50 (ID)
USC-MSA web (English) reference(deprecated numbering scheme): Book 10, Hadith 3654 (ID)