śabdasvalakṣaṇagrahaṇād uttarakālaṃ parokṣe 'rthe yadutpadyate jñānaṃ tacchabdādāgatam iti kṛtvā śābdapramāṇam /
[This means that] after grasping the specific characteristic of the word, the knowledge that arises regarding an imperceptible object is verbal valid cognition, because it comes from words.