In Islamic Shariah, there are two opinions related to nature
of currency notes:
1. FIRST SCHOOL OF THOUGHT
(a). Currency notes are considered as “Floos” (Metal
Coins) of ancient times. Therefore the laws of metal coins
will apply in exchange of currency notes
(b). If the currencies are of the same country, they
can only be exchanged in equal terms
(c). If the currencies are of different countries, they
can be exchanged at the market rate. The consideration on one
side may be deferred to a future date
(d). However if the payment is deferred on either side,
it must be in accordance with the market rate. This condition
is put to restrict the use of this transaction to the genuine
needs; otherwise it may be taken as a device to effect
interest based transaction
2. SECOND SCHOOL OF THOUGHT
(a). Use of currency notes as use of Gold and Silver.
The rules applicable to exchange of Gold & Silver (Bai’ Sarf)
will be applicable to exchange of currency notes. This view is
also adopted by AAOIFI Shari’a standard
(b). Currency of same country can only be exchanged in
equal terms and possession must be at spot
(c). Currencies of different countries can be exchange
in unequal terms but possession must be at spot
(d). Both parties must take possession (actual or
constructive) of the counter-values at the closing of the
transaction. The counter-values of the same currency must be
of equal amount
(e). The contract shall not contain any conditional
option or deferment clause regarding the delivery of one or
both countervalues
(f). It is prohibited to enter into forward or future
currency contracts
(g). Possession may take place either physically or
constructively. Constructive possession of an asset is deemed
to have taken place by the seller enabling the other party to
take its delivery and dispose of it
(i)- A delay in making the transfer is allowed to the
institution, consistent with the business practice in currency
markets
(ii)- Receipt of a cheque constitutes constructive
possession, provided the balance payable is available in the
account of the issuer
(h). A bilateral promise to purchase and sell
currencies is forbidden. However, a promise from one party is
permissible even if the promise is binding