What did the Prophet Muhammad (saw) forbid regarding the sale of dates?
 Narrated Abu Al-Bakhtari:                     I asked Ibn `Umar about Salam (the fruits of) date-palms. He replied, "The Prophet forbade the sale of dates till their benefit becomes evident and fit for eating and also the sale of silver (for gold) on credit." I asked Ibn `Abbas about Salam for dates and he replied, "The Prophet forbade the sale of dates till they were fit for eating and could be estimated."