Anandakanda 1.24.121

1.24.121

śatāṃśena tu candrārkaṃ vedhayet suravandite /
punastenaiva yogena piṣṭīstaṃbhaṃ tu kārayet //

with a one-hundredth part one should pierce silver and copper, O you who are adored by the gods. / Again, by that very recipe one should effect the arrest of the paste;