Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 9
Sanskrit:
अथ तैरभ्यनुज्ञात: कौशिकीमेत्य ब्राह्मणै: ।स्नात्वा सरोवरमगाद् यत: सरयूरास्रवत् ॥ ९ ॥
ITRANS:
atha tair abhyanujñātaḥkauśikīm etya brāhmaṇaiḥsnātvā sarovaram agādyataḥ sarayūr āsravat
Translation:
Then, given leave by the sages, the Lord went with a contingent of brāhmaṇas to the Kauśikī River, where He bathed. From there He went to the lake from which flows the river Sarayū.