dūṣaṇavādī ca yadi parābhyupagataṃ svadharmādharmamātrajñaṃ pratiṣedhati tadā tasya niṣedhe kṛte sati dūṣitadharmādharmajñapraṇītasyāgamasya heyatvaṃ prasiddhyati /
And if the opponent refutes [the existence of] one who knows only dharma and adharma as accepted by the other side, then when this refutation is accomplished, the rejectability of scripture composed by the refuted knower of dharma and adharma becomes established.