Bhagwad Gita
Chapter 10, Verse 27
उच्चैःश्रवसमश्वानां विद्धि माममृतोद्भवम्।
ऐरावतं गजेन्द्राणां नराणां च नराधिपम्।।10.27।।
Of horses know Me to be Uccaihsrava, who rose out of the ocean, born of the elixir of immortality; of lordly elephants I am Airavata, and among men I am the monarch.