SB 9.20.18
kanvah kumarasya vane
cakre samucitah kriyah
baddhva mrgendram tarasa
kridati sma sa balakah
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
In the forest, Kanva Muni performed all the ritualistic ceremonies concerning the newborn child. Later, the boy became so powerful that he would capture a lion and play with it.