(35) باب بَيْعِ الْعَرَايَا بِالرُّطَبِ
It was narrated from Sahl bin Abi Hathamah that the Prophet forbade selling fruits before their condition was known, but he granted a concession allowing 'Araya sales by estimate, so its people could eat fresh dates.
Reference: Sunan an-Nasa'i 4542
In-book reference: Book 44, Hadith 94
English translation: Vol. 5, Book 44, Hadith 4546