tathā hi satyapi śabdasaṃskāre badhirasya śrotrasaṃskāravaikalyān na śabdagrahaṇam / abadhirasyāpyanabhivyakteḥśabda(syā)grahaṇam
For indeed, even when the sound-saṃskāra exists, a deaf person does not grasp sound due to deficiency in the ear-saṃskāra, and even a non-deaf person does not grasp sound when [the sound] is unmanifested.