svayam visnur ayam hi gauh
vatsah-a calf; ca-also; asit-became; tada-at that time; brahma-Lord Brahma; svayam-personally; visnuh-Lord Visnu, the Supreme Personality of Godhead; ayam-this; hi-indeed; gauh-a cow; pravisya-entering; tri-puram-the three residences; kale-at noon; rasa-kupa-amrtam-the nectar contained in that well; papau-drank.