Arthashastra
ब्रूयाच् च एनं "नाग रक्षितो अयं निधिः प्रणिपात साध्यः" इति ॥
or having kept some more gold in the interior of the ant-hill, the ascetic may tell the king: "This treasure trove is guarded by a snake and can possibly be taken out by performing necessary sacrifice.
english translation
brUyAc ca enaM "nAga rakSito ayaM nidhiH praNipAta sAdhyaH" iti ॥
hk transliteration by Sanscript