Mahabharata 14.36.6
तमसो मिथुनं सत्त्वं सत्त्वस्य मिथुनं रजःरजसश्चापि सत्त्वं स्यात्सत्त्वस्य मिथुनं तमः
tamaso mithunaṃ sattvaṃ sattvasya mithunaṃ rajaḥrajasaścāpi sattvaṃ syātsattvasya mithunaṃ tamaḥ
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book