Sāṃkhya Kārikā verse 4

dṛṣṭam-anumānam-āptavacanaṃ ca sarva-pramāṇa-siddhatvāt |
trividhaṃ pramāṇam-iṣṭaṃ prameya-siddhiḥ pramāṇāt-dhi ||

dṛṣṭa - seenanumāna - inferencepramāṇa - right perceptionsiddhi - accomplishment, performance, fulfilment, attainment, success

Commentaries and Reflections

Paul Harvey:

The means to right perception involves
direct observation,
inference and
authentic authority.