Anandakanda 2.8.65

2.8.65

tatpakvaṃ pācanadrāvaiḥ secitaṃ śuddhimāpnuyāt /
vyāghrīkandagataṃ vajraṃ mṛdā liptaṃ puṭe pacet //

That, cooked and sprinkled with digestive liquids, attains purification. / The diamond lodged inside a vyāghrīkanda tuber, coated with clay, one should cook in an incinerator;