Anandakanda 1.16.55

1.16.55

jīveddivyavapur bhūtvā sādhako nātra saṃśayaḥ /
sanālamutpalaṃ sūtaṃ saptāhaṃ parimardayet //

the practitioner lives, having become a divine body; there is no doubt in this. / Quicksilver with blue lotus including its stalk one should grind for seven days;