Nyāya Sūtras 82.4

82.4

kecit tu dṛṣṭāntam aparigṛhītaṃ hetunā viśeṣahetum antareṇa sādhyasādhanāyopādadate; yathā pradīpaprakāśaḥ pradīpāntaraprakāśam antareṇa gṛhyate tathā pramāṇāni pramāṇāntaram antareṇa gṛhyata iti/ sa cāyam ---
yathā cāyaṃ prasaṅgo nivṛttidarśanāt pramāṇasādhāyopādīyate/ evaṃ prameyasādhanāyāpy upādeyo 'viśeṣahetutvāt --- yathā ca sthālyādirūpagrahaṇe pradīpaprakāśaḥ prameyasādhanāyopādīyate,

Some, however, adduce an example unsupported by a reason, without a differentiating reason, to establish what is to be proved: ‘Just as the light of a lamp is grasped without the light of another lamp, so the means of valid cognition are grasped without another means of valid cognition.’ And this—just as this undesirable consequence is adduced to establish the means of valid cognition because of the observation of cessation, so it should also be adduced to establish the object of valid cognition, because the reason is non-differentiating. And just as the light of a lamp in the grasping of the form of a pot or the like is adduced to establish the object of valid cognition,