Karika 64

ēvaṁ tattvābhyāsānnāsti na mē nāhamityapariśēṣam। aviparyayādviśuddhaṁ kēvalamutpadyatē jñānam ॥64॥

By practising principles this way - "does not exist", "not mine", "not me", "what remains beyond?""; one and only special knowledge, the 'kevalam-jñānam', is produced that is free from error of judgement.