etac cātmaparīkṣādau pratipāditam / kiñca śrutiparīkṣāyāṃ vedānāṃ pauruṣeyatvasya sādhitatvāt, satyapi vāpauruṣeyatve dāvavanhyādivan mithyātvakāraṇatāsambhavāt, aprāmāṇyamasya sambhāvyata ityevam ucyate, na sādharmyamātram /
This has been explained in the examination of the soul and other [topics]. Moreover, since in the examination of scripture the human authorship of the Vedas has been established, or even if they were authorless, the possibility of causes of falsity exists—as in the case of forest fires and such—it is thus said that its invalidity is possible, not [merely based on] similarity alone.