Astanga Hrudaya
स्नेहोऽक्षित्वग्विशामोजो धातूनां क्रमशो मलाः। प्रसादकिट्टौ धातूनां पाकादेवं द्विधच्छतः॥६४॥
fatty material of the eyes, skin and visa, and the ojas (essence of tissues) are the mala (wastes) of the tissues respectively. Essence and excreta are two byproducts of digestion in tissues: The essence and waste are the byproducts of dhatus (tissues) are produced only after paka (transformation in the dhatus)
english translation
sneho'kSitvagvizAmojo dhAtUnAM kramazo malAH। prasAdakiTTau dhAtUnAM pAkAdevaM dvidhacchataH॥64॥
hk transliteration by Sanscript