Adhyāya 4, Āhnika 2, Sūtra 50
1099 svapakṣarāgeṇa caike nyāyam ativartante, tatra —
tattvādhyavasāyasaṃrakṣaṇārthaṃ jalpavitaṇḍe bījaprarohasaṃrakṣaṇārthaṃ kaṇṭakaśākhāvaraṇavat // 4.2.50 //
anutpannatattvajñānānām aprahīṇadoṣāṇāṃ tadarthaṃ ghaṭamānānām etad iti// 50 //