Rasadhyaya 85

85

jāyate śvetakuṣṭhaṃ ca śyāmākañcukasambhavam
hanti tejaḥ śarīrasya malaḥ pāradasambhavaḥ //

white leprosy arises born of the dark sheath defect. / The dross born of mercury destroys the luster of the body;