tatsaṃskāradvāreṇa śrotrasya saṃskāro na kevalasya / tenāsaṃskṛtādhiṣṭhānatvāc ca vidūrasthānyacittasaptamūrchitānāṃ śrotraṃ na śṛṇoti /
The modification of the auditory organ [occurs] through the modification of that [ear-drum], not independently. Therefore, due to the non-modification of [their] substratum, the auditory organ does not hear in the case of those who are distant, whose minds are elsewhere, [who are] asleep, or [who are] unconscious.