Rasarnava 11.188

11.188

kiṃvāranālasiddhārthadhūmasāreṣṭakāguḍaiḥ
mardayettridinaṃ sūtaṃ dolāyāṃ svedayet tryaham //

Or else, with fermented sour gruel, mustard, soot, brick dust, and jaggery,
one should grind mercury for three days and steam it in a swing-apparatus for three days;