Yoga Sūtra Chapter Three verse 18

saṃskāra-sākṣāt-karaṇāt-pūrva-jāti-jñānam ||18||

Effecting directly seeing tendencies,
knowledge of previous existences.

saṃskāra - tendencies, psychological imprint, mental impression, habitual potency; making ready, preparation; a sacred or sanctifying ceremonysākṣāt - directly seeingkaraṇa - making, effectingpūrva - precedingjāti - existencejñāna - knowing; knowledge; higher knowledge