Sahih Bukhari Volume 3, Book 34, Hadith Number 397.

Narated By Ibn ‘Umar from Zaid bin Thabit : Allah’s Apostle allowed the sale of ‘Araya by estimating the dates on them for measured amounts of dried dates. Musa bin ‘Uqba said, “Al- ‘Araya were distinguished date palms; one could come and buy them (i.e. their fruits).”