Srimad-Bhagavatam: Canto 6 - Chapter 1 - Verse 3
Sanskrit:
तत्र नारायणसरस्तीर्थं सिन्धुसमुद्रयो: ।सङ्गमो यत्र सुमहन्मुनिसिद्धनिषेवितम् ॥ ३ ॥
ITRANS:
tatra nārāyaṇa-sarastīrthaṁ sindhu-samudrayoḥsaṅgamo yatra sumahanmuni-siddha-niṣevitam
Translation:
In the west, where the river Sindhu meets the sea, there is a great place of pilgrimage known as Nārāyaṇa-saras. Many sages and others advanced in spiritual consciousness live there.