Silver for gold is Riba (usury) unless exchanged on the spot; wheat for wheat is Riba unless exchanged on the spot; barley for barley is Riba unless exchanged on the spot; and dates for dates is Riba unless exchanged on the spot The Messenger of Allah (may Allah's peace and blessings be upon him) prohibited the sale of exchange of gold with silver on credit The Messenger of Allah (may Allah's peace and blessings be upon him) forbade the sale of silver for silver and gold for gold except for equal quantities, and commanded us to buy silver with gold as we desire, and to buy gold with silver as we desire Beware! Beware! This is definitely usury! This is definitely usury! Do not do so, but if you want to buy (a superior kind of dates) sell the inferior dates for money, and then buy the superior kind of dates with that money Do not sell gold for gold except like for like, and do not sell less amount for greater amount or vice versa. And do not sell silver for silver except like for like, and do not sell less amount for greater amount or vice versa. And do not sell gold or silver that is not present at the moment of exchange for gold or silver that is present