tadbhāve vāyavīyasaṃyogavibhāgasadbhāve sati, śabdasyāvagamād adṛṣṭaḥ saṃskāraḥ śrotrasyeṣyate
When that exists, that is, when the conjunctions and disjunctions of air are present, there is cognition of sound; [and] because of this, an unseen modification of the auditory organ is accepted.