Arthashastra
सर्प दष्टस्य भस्मना पूर्णा प्रचलाक भस्त्रा मृगाणाम् अन्तर् धानम् ॥
The slough of prachaláka (a bird?) filled with the ashes of the corpse of a man dead from snake-bite, can render beasts (mriga) invisible.
english translation
sarpa daSTasya bhasmanA pUrNA pracalAka bhastrA mRgANAm antar dhAnam ॥
hk transliteration by Sanscript