Anandakanda 1.23.459

1.23.459

avadhyaḥ sarvabhūtānāṃ svecchāhāraḥ sa khecaraḥ /
kanakaṃ pāradaṃ vyoma samam ekatra yojayet //

he cannot be slain by any living beings, eats whatever he desires, and flies in the sky.
One should combine equal parts of gold, mercury, and mica together;