tathā hi na bāhyam arthaṃ śabdāḥ pratipādayanti tena saha pratibandhābhāvād iti pūrvaṃ śabdaparīkṣāyāṃ niveditam
Indeed, words do not denote external objects due to the absence of invariable concomitance with them, as has been explained earlier in the examination of words.