Yoga Sūtra Chapter Three verse 55

sattva-puruṣayoḥ śuddhi-sāmye kaivalyam ||55||

Equality of purity,
in clarity and animating principle,
is abstraction.

sattva - claritypuruṣa - animating principle, self, consciousness, spiritśuddha - puresāmya - equalkaivalya - independence, freedom, solitude, separateness, abstraction, not connected with anything else; uncompounded, unmingled