In His childhood, the Almighty Lord was surrounded by cowherd boys and calves, and thus He traveled on the shore of the Yamunā river, through gardens densely covered with trees and filled with vibrations of chirping birds.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
परीतो वत्सपैर्वत्सांश्चारयन्व्यहरद्विभुः । यमुनोपवने कूजद्द्विजसङ्कुलिताङ्घ्रिपे
parīto vatsapairvatsāṃścārayanvyaharadvibhuḥ | yamunopavane kūjaddvijasaṅkulitāṅghripe
SB 3.2.27