Anandakanda 1.5.46

1.5.46

<dhūmavedhīrasaḥ>
śuddhāni hemapatrāṇi śatāṃśenānulepayet /
puṭena mārayedetadindragopanibhaṃ bhavet //

<Smoke-transmuting mercury>
One should smear pure gold leaves with a hundredth part [of that mercury]; / he should kill this by roasting until it resembles a cochineal insect.