SB 10.52.13

alakṣyamāṇau ripuṇā
sānugena yadūttamau
sva-puraṁ punar āyātau
samudra-parikhāṁ nṛpa

alakṣyamāṇau—not being seen; ripuṇā—by Their enemy; sa—together; anugena—with his followers; yadu—of the Yadus; uttamau—the two most excellent; sva-puram—to Their own city (Dvārakā); punaḥ—again; āyātau—They went; samudra—the ocean; parikhām—having as its protective moat; nṛpa—O King.

Unseen by Their opponent or his followers, O King, those two most exalted Yadus returned to Their city of Dvārakā, which had the ocean as a protective moat.