Threefold means of valid knowledge
Ancient Ṣimānanda SanskritTats_21
trividhaṃ pramāṇam ||
Tats_21.c1
dṛṣṭamanumānamāptavacanaṃ caitat pramāṇakam / pañcendriyāṇi pratyakṣaṃ vṛṣṭirmeghodayena tu //
Tats_21.c2
anumānamindro devānāṃ rājāśabdaḥ pramāpakaḥ //
Tats_21.c3
āgame 'pi, svakarmabhirvinirmukto rāgadveṣavivarjitaḥ // jñānavān śīlasampannaḥ so 'pi jñeyaśca tādṛśaḥ //