Anandakanda 2.1.112

2.1.112

abhravaddhamane satvaṃ sasyakasyāpyayaṃ vidhiḥ /
<dvitīyaḥ prakāraḥ>
dolāyantre sāranāle mākṣikaṃ svedayeddinam //

when blown with bellows like mica, [yields its] essence; this is also the method for sasyaka.
<The second method>
One should steam mākṣika for a day in a swing apparatus containing sour gruel;