Anandakanda 2.1.39

2.1.39

<gandhakasattvapātanam; prathamaḥ prakāraḥ>
gandhakastu kuberākṣītailena ciramarditaḥ /
dṛḍhaṃ prakaṭamūṣāyāṃ dhmātaḥ sattvaṃ vimuñcati //

<Extraction of sulphur essence; first method> / Sulphur, ground for a long time with kuberākṣī oil, / strongly blown with bellows in an open crucible, releases its essence.