If he said, "Give me a half Dirham worth of loose currency and a half except for a Habbah?" Print
Kitabul Buyu' [Book of Transactions] - Bay'us Sarf [Currency dealings]

Question 861) - If he said, "Give me a half Dirham worth of loose currency and a half except for a Habbah?"

A: It is permissible.*

* Because in this case he made the whole Dirham in exchange for what he asked. Hence his half Dirham less the Habbah will be in exchange for its equal and the remainder of his Dirham will be for the loose currency.

~ al-Quduri ~