Sunan an-Nasa'i 4547
سنن النسائي#4547SahihJabir bin 'Abdullahsaid:"The Messenger of Allah forbade selling a heap of dried dates whose volume is unknown for known volume of dried dates
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih Hadith
Zubair Ali ZaiSahih Muslim
In-book reference: 44:99