وما سواه مما فيه الربا يعتبر فيه التعيين ولا يعتبر فيه التقابض
Translation: For other ribawi exchanges, identification of the countervalues is required, but mutual taking of possession in the same session is not a universal condition.
Quduri distinguishes sarf from other ribawi commodity exchanges. Outside sarf, valid specific identification (taʿyin) of the existing countervalues matters; physical handover of both before leaving the session is not always required in the same way as sarf.
Two specific piles of wheat and barley identified and exchanged now are legally different from an undertaking to provide unspecified barley next month. A contractual deferment must not be conflated with practical movement of already identified goods.