فإذا عدم الوصفان الجنس والمعنى المضموم إليه حل التفاضل والنساء
Translation: Where both genus and the accompanying operative attribute are absent, unequal amounts and deferment are allowed under this rule.
If neither genus nor the governing ribawi measure coincides, this particular Hanafi cause of riba imposes neither equality nor a ban on delay.
For example, exchanging a specified garment for a specified amount of wheat does not combine the two relevant attributes. This does not remove other contract requirements: the parties still need a lawful, clearly identified sale with valid delivery and payment terms.