Srimad-Bhagavatam: Canto 4 - Chapter 1 - Verse 24
Sanskrit:
नन्दा चालकनन्दा च सरितौ बाह्यत: पुर: ।तीर्थपादपदाम्भोजरजसातीव पावने ॥ २४ ॥
ITRANS:
nandā cālakanandā casaritau bāhyataḥ puraḥtīrthapāda-padāmbhoja-rajasātīva pāvane
Translation:
They also saw the two rivers named Nandā and Alakanandā. These two rivers are sanctified by the dust of the lotus feet of the Supreme Personality of Godhead, Govinda.