It was recorded by Abū Dāwūd.

Those who declare the transaction impermissible rely on the report transmitted from Abū Saʿīd and others:

“Do not sell that of it which is absent for what is handed over on the spot.”

The Seventh Issue

The Mālikī jurists disagreed about combining a sale with a currency-exchange (ṣarf) transaction. Mālik maintained that it is not permissible unless one of the two considerations is the principal one while the other is merely ancillary, whether the exchange involves a single dinar or several. Another opinion holds that if the ṣarf concerns only one dinar it is permissible however it is arranged, but if it involves more than one, its permissibility depends on one element being subordinate to the other; if both are independently intended, the deal is invalid.

Ashhab allowed the combination of ṣarf and sale outright, and his view is stronger, for nothing in it leads to ribā (usury) or to gharar (excessive uncertainty).