Sahih al-Bukhari #2246 · Sales in which a Price is paid for Goods to be Delivered Later (As-Salam)

I asked Ibn 'Abbas about Salam for (the fruits of) date-palms. He replied "The Prophet (ﷺ) forbade the sale a dates on the trees till they became fit for eating and could be weighed." A man asked what to be weighed (as the dates were still on the trees). Another man sitting beside Ibn 'Abbas replied, "Till they are cut and stored." Narrated Abu Al-Bakhtari: I heard Ibn 'Abbas (saying) that the Prophet (ﷺ) forbade ... etc. as above