1099 svapakṣarāgeṇa caike nyāyam ativartante, tatra —
tattvādhyavasāyasaṃrakṣaṇārthaṃ jalpavitaṇḍe bījaprarohasaṃrakṣaṇārthaṃ kaṇṭakaśākhāvaraṇavat // 4.2.50 //
anutpannatattvajñānānām aprahīṇadoṣāṇāṃ tadarthaṃ ghaṭamānānām etad iti// 50 //
Adhyāya 4, Āhnika 2, Sūtra 51
vidyānirvedādibhiś ca pareṇāvajñāyamānasya —
tābhyāṃ vigṛhya kathanam // 4.2.51 //