SB 10.78.18
snatva prabhase santarpya
devarsi-pitr-manavan
sarasvatim prati-srotam
yayau brahmana-samvrtah
Translation:
After bathing at Prabhasa and honoring the demigods, sages, forefathers and prominent human beings, He went in the company of brahmanas to the portion of the Sarasvati that flows westward into the sea.