Ca, Sū., 30, 23.1 tadāyur vedayatītyāyurvedaḥ kathamiti cet ucyate svalakṣaṇataḥ sukhāsukhato hitāhitataḥ pramāṇāpramāṇataśca yataścāyuṣyāṇyanāyuṣyāṇi ca dravyaguṇakarmāṇi vedayatyato'pyāyurvedaḥ /

Ca, Sū., 30, 25.0 pramāṇam āyuṣastvarthendriyamanobuddhiceṣṭādīnāṃ vikṛtilakṣaṇair upalabhyate'nimittaiḥ ayam asmāt kṣaṇānmuhūrtād divasāt tripañcasaptadaśadvādaśāhāt pakṣānmāsāt ṣaṇmāsāt saṃvatsarād vā svabhāvamāpatsyata iti tatra svabhāvaḥ pravṛtteruparamo maraṇam anityatā nirodha ityeko'rthaḥ ityāyuṣaḥ pramāṇam ato viparītam apramāṇam ariṣṭādhikāre dehaprakṛtilakṣaṇam adhikṛtya copadiṣṭamāyuṣaḥ pramāṇamāyurvede //

Ca, Vim., 4, 4.4 apramāṇaṃ punarmattonmattamūrkharaktaduṣṭāduṣṭavacanamiti pratyakṣaṃ tu khalu tadyat svayamindriyairmanasā copalabhyate /

Ca, Śār., 6, 28.11 yadi hyakāle mṛtyurna syānniyatakālapramāṇam āyuḥ sarvaṃ syāt evaṃgate hitāhitajñānamakāraṇaṃ syāt pratyakṣānumānopadeśāścāpramāṇāni syurye pramāṇabhūtāḥ sarvatantreṣu yairāyuṣyāṇyanāyuṣyāṇi copalabhyante /