Anandakanda 1.6.122

1.6.122

rajatenendusaṃkāśo hemnā kāñcanasaprabhaḥ /
dhūmāvalokī vaktrastho māsātkhecaratāṃ nayet //

With silver, it resembles the moon; with gold, it has the glow of gold. / [Mercury] that perceives smoke, held in the mouth, brings about aerial locomotion within a month;