Rasendrapurana 47.59

Rasendrapurāṇa 47.59

rasānāṃ śodhanasattvapātanayorvidhiḥ
mahārasānāṃ sarveṣāṃ rasānāṃ śuddhirucyate
tathā coparasānāṃ ca śāstradṛṣṭena vartmanā