In Pulaha-asrama is the Gandaki River, which is the best of all rivers. The salagrama-sila, the marble pebbles, purify all those places. On each and every marble pebble, up and down, circles like navels are visible

Expressions researched:
"In Pulaha-asrama is the Gandaki River, which is the best of all rivers. The salagrama-sila, the marble pebbles, purify all those places. On each and every marble pebble, up and down, circles like navels are visible"

SB Canto 5

In Pulaha-āśrama is the Gaṇḍakī River, which is the best of all rivers. The śālagrāma-śilā, the marble pebbles, purify all those places. On each and every marble pebble, up and down, circles like navels are visible.

SB 5.7.10, Translation and Purport:

In Pulaha-āśrama is the Gaṇḍakī River, which is the best of all rivers. The śālagrāma-śilā, the marble pebbles, purify all those places. On each and every marble pebble, up and down, circles like navels are visible.

Śālagrāma-śilā refers to pebbles that appear like stones with circle; marked up and down. These are available in the river known as Gaṇḍakī-nadī. Wherever the waters of this river flow, the place becomes immediately sanctified.