Rasendracudamani 10.24

10.24

tṛṇaṃ kṣiptaṃ dahedyāvattāvadvā bharjanaṃ caret /
tataḥ sagandhakaṃ piṣṭvā vaṭamūlakaṣāyataḥ //

Or one should roast it until grass thrown upon it burns; / then, having ground it with sulphur and with a decoction of banyan aerial roots,