yo 'smin snÄtvÄ mad-ÄkrÄ«á¸e
devÄdÄ«á¹s tarpayej jalaiḥ
upoá¹£ya mÄá¹ smarann arcet
sarva-pÄpaiḥ pramucyate
yaḥ - who; asmin - in this (KÄliya's lake in the YamunÄ River); snÄtvÄ - bathing; mat-ÄkrÄ«á¸e - the place of My pastime; deva-ÄdÄ«n - the demigods and other worshipable personalities; tarpayet - gratifies; jalaiḥ - with the water (of that lake); upoá¹£ya - observing a fast; mÄm - Me; smaran - remembering; arcet - performs worship; sarva-pÄpaiḥ - from all sinful reactions; pramucyate - he becomes freed.
According to the ÄcÄryas, the Lord spoke this verse to make it clear to KÄliya that he could by no means remain in the YamunÄ lake. Although the Lord had mercifully pardoned the serpent and ordered him to go to the ocean with all his associates, KÄliya should not even consider requesting to remain in the lake, because it was now to become a holy place for spiritual pilgrims.