Mahabharata 12.205.29

तस्मादात्मवता वर्ज्यं रजश्च तम एव चरजस्तमोभ्यां निर्मुक्तं सत्त्वं निर्मलतामियात्

tasmādātmavatā varjyaṃ rajaśca tama eva carajastamobhyāṃ nirmuktaṃ sattvaṃ nirmalatāmiyāt

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