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system
is real (physical) money traded during online trading?
user
i think you need to define what you mean by "buy currency online using some online forex trading platform" ... in large fx trades, real money [you mean actual electronic money, as there is not paper that travels these days]...   the fx market is quite wide with all kinds of trades. there are quite a few fx transactions that are meant for delivery. you have to pay in the currency for full amount and you get the funds electronicall credited to you in other currency [ofcouse you have an account in the other currency or you have an obligation to pay]. this type of transaction is valid in ismalic banking. the practise of derivaties based on this or forward contracts on this is not allowed.
assistant