prayogaḥ yo yatra jñāne nopayogaṃ pratipadyate na sa tajjñānajñeyaḥ, yathā rasādiḥ śrotrajñāne, nopayujyate ca śabdaḥ śrotrajñāna iti vyāpakaviruddhopalabdhiḥ /
The argument may be formulated thus: Whatever has no role in a cognition cannot be cognized by that cognition - just as taste etc. [cannot be cognized] in auditory cognition; and Sound has no role in auditory cognition - this is apprehension of what contradicts the pervader.