Nyāya Sūtras 45.4

45.4

sa jalpo vitaṇḍā bhavati/ kiṃviśeṣaṇaḥ? pratipakṣasthāpanayā hīnaḥ/ yau tau samānādhikaraṇau viruddhau dharmau pakṣāv ity uktaṃ tayor ekataraṃ vaitaṇḍiko na sthāpayatīti prapakṣapratiṣedhenaiva pravartata iti/

That disputation becomes cavil. With what qualification? Devoid of the proof of a counter-thesis. Of those two opposing properties residing in the same substratum that were called the theses, the caviller does not establish either one; he proceeds solely by refuting the thesis of the opponent.