Nyayasutra 6.2

6.2

vādalakṣaṇānantaramubhayasthāpanāvattyā tatsāmyājjalpalakṣaṇāya sūtram—‘‘yathokto……jalpaḥ’’ | yathoktena pramāṇena tarkasādhanopālambha iti mātreṇopapannaḥ upālambhapadādevāśeṣanigrahasthānaprāpteḥ pakṣapratipakṣaparigrahasyāpi chalādibhirūpālambho yatretyanyapadārthatayā lābhāt | atra chalādīnāmapi prayogaḥ, kathakayoḥ vijigīṣutvāt na tu vāde | paṭcpeṭādīnāmavacanatvādeva na prasaṅgaḥ | lakṣaṇaṃ tūbhayapakṣasthāpanāvatī vijigīṣukathā jalpaḥ | nanu vitaṇḍayaivārthasiddheḥ kiṃ tadadhikenaitarkartavyatākayānayā kathayeti cet na, yatraikasya sādhanamātre aparasya dūṣaṇamātre sāmarthyanirūpaṇaṃ tatra vitaṇḍā ! yatra tu dvayasyāpyubhayatra sāmarthyanirūpaṇaṃ tatra dvābhyāṃ sādhanadūṣaṇaprayoge jalpaḥ |