yatrāśrama-padāny ubhayato nābhibhir dṛṣac-cakraiś cakra-nadī nāma sarit-pravarā sarvataḥ pavitrī-karoti
yatra - where; āśrama-padāni - all hermitages; ubhayataḥ - both on top and below; nābhibhiḥ - like the symbolic mark of a navel; dṛṣat - visible; cakraiḥ - with the circles; cakra-nadī - the Cakra-nadī River (generally known as the Gaṇḍakī); nāma - of the name; sarit-pravarā - the most important river of all; sarvataḥ - everywhere; pavitrī-karoti - sanctifies.
Śālagrāma-śilā refers to pebbles that appear like stones with circles 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.