SB 10.28.1
sri-badarayanir uvaca
ekadasyam niraharah
samabhyarcya janardanam
snatum nandas tu kalindyam
dvadasyam jalam avisat
Translation:
Sri Badarayani said: Having worshiped Lord Janardana and fasted on the Ekadasi day, Nanda Maharaja entered the water of the Kalindi on the Dvadasi to take his bath.