anupalabhamānāś ca kathamaśabdātmakavyāvacchedakṛtaṃ śabdākārānusyūtatvaṃ kalpayāmaḥ / tasmād abījeyaṃ kalpanetyasiddho hetuḥ /
And not perceiving [it], how can we conceptualize a pervasion by Sound-form based on exclusion of what is not of the nature of Sound? Therefore this conceptualization is groundless and hence the reason is inadmissible.