Sri-Bhagavan Uvaca
ayudhanam aham vajram
dhenunam asmi kamadhuk
prajanas casmi kandarpah
sarpanam asmi vasukih
dhenunam asmi kamadhuk
prajanas casmi kandarpah
sarpanam asmi vasukih
(The Opulence of the Absolute, Text 28, Chapter 10)
Meaning: Of weapons I am the thunderbolt; among cows I am the surabhi. Of causes for procreation I am Kandarapa, the god of love, and of serpents I am Vasuki.
Bhagavad-gita: I am the thunderbolt / surabhi/ Kandarapa/ Vasuki (The Opulence of the Absolute, Text 28, Chapter 10)