SB 8.24.27
nunam tvam bhagavan saksad
dharir narayano ’vyayah
anugrahaya bhutanam
dhatse rupam jalaukasam
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
My Lord, You are certainly the inexhaustible Supreme Personality of Godhead, Narayana, Sri Hari. It is to show Your mercy to the living entities that You have now assumed the form of an aquatic.