Anandakanda 1.16.58

1.16.58

vatsarājjāyate siddhiḥ pūrvavaddivyavigrahaḥ /
kaṭutailena surabhiṃ bhāvayeddinasaptakam //

From a year alchemical perfection arises, with a divine body as before. / With mustard oil one should steep yellow vitriol for seven days;