Skandapurana 1.3.29.54

1.3.29.54

etajjñānaṃ jñānavido vadaṃti sarvātmabhāvena nirīkṣayaṃti..
sarvātītaṃ jñānagamyaṃ viditvā yena svasthāḥ samabuddhyā caraṃti.. 31.54 ..

Those who know knowledge declare this knowledge; they perceive [all] with universal selfhood, / having known that which is beyond all, reachable through knowledge, by which they remain centered, acting with an even mind. (31.54)