Bhagavad Gita Chapter 10.29
anantaś cāsmi nāgānāḿ
varuṇo yādasām aham
pitṝṇām aryamā cāsmi
yamaḥ saḿyamatām aham
Translation
Of the many-hooded Nagas I am Ananta, and among the aquatics I am the demigod Varuna. Of departed ancestors I am Aryama, and among the dispensers of law I am Yama, the lord of death.