yasmāt saṃskṛtaśravaṇotpādyena jñānena sambaddhaḥ śabdaḥ sarvadānuvartate tasmād asaṃskṛtaśrotrasyāpi tadvijñānaṃ prāpnotīti vyarthaṃ śrotrasaṃskaraṇam
Since the word connected with the cognition producible by the refined auditory organ persists at all times, therefore even one whose auditory organ is unrefined would obtain that cognition; hence the refinement of the auditory organ would be pointless.