Anandakanda 1.23.180

1.23.180

gandhakaṃ jīryate yāvatkākamācyādikadravaiḥ /
dhattūrāntaiḥ pacedevaṃ baddho bhavati pāradaḥ //

Until the sulphur is consumed with the juices of kākamācī and the rest / ending with datura, one should cook it in this way; [and] the mercury becomes bound.