Anandakanda 1.4.258

1.4.258

mardayettena patrāṇi śuddhanāgasya lepayet /
puṭeddvātriṃśatipuṭe nāgo bhasmati tadvahet //

one should grind them, and with that smear leaves of purified lead. / One should ignite [them] in thirty-two puṭa calcinations; the lead turns to ash, [and] one should project that,