Anandakanda 2.1.14

2.1.14

sājyaṃ bhāṇḍe payaḥ kṣiptvā mukhaṃ vastreṇa bandhayet /
tatpṛṣṭhe cūrṇitaṃ gandhaṃ kṣiptvā śrāveṇa rodhayet //

Having poured milk with clarified butter into a pot, one should bind its mouth with a cloth. / Having placed powdered sulphur upon that [cloth], one should cover it with a shallow earthenware lid.