Mahabharata 259.25

रावण उवाच
गन्धर्वदेवासुरतो यक्षराक्षसतस्तथा
सर्पकिंनरभूतेभ्यो न मे भूयात्पराभवः

Ravana uvacha
Gandharvadevasurato yaksharakshasatastatha
Sarpakinnarabhutebhyo na me bhuyatparabhavah