Garudapurana 1.81.22

1.81.22

kṛṣṇaveṇī bhīmarathī gaṇḍakī yā tvirāvatī /
tīrthaṃ bindusaraḥ puṇyaṃ viṣṇupādodakaṃ param //

the Kṛṣṇaveṇī, the Bhīmarathī, the Gaṇḍakī, and the Irāvatī; / the holy sacred site Bindusaras, and the supreme water from Viṣṇu's feet;