Bhagavad Gita 10.28
I am the thunderbolt among weapons; I am the Cow of Plenty among cows; I am Passion in those who procreate, and I am the Cobra among serpents.
आयुधानामहं वज्रं धेनूनामस्मि कामधुक्।
प्रजनश्चास्मि कन्दर्पः सर्पाणामस्मि वासुकिः॥āyudhānāmahaṃ vajraṃ dhenūnāmasmi kāmadhuk|
prajanaścāsmi kandarpaḥ sarpāṇāmasmi vāsukiḥ||
English translation (above): Shri Purohit Swami (1935), public domain. Sanskrit text via github.com/gita/gita (Unlicense).