Mahabharata 12.210.35

विकारं प्रकृतिं चैव पुरुषं च सनातनम्यो यथावद्विजानाति स वितृष्णो विमुच्यते

vikāraṃ prakṛtiṃ caiva puruṣaṃ ca sanātanamyo yathāvadvijānāti sa vitṛṣṇo vimucyate

Our plain-language meaning of this verse is waiting for scholar review.