SB 10.4.44
sandisya sadhu-lokasya
kadane kadana-priyan
kama-rupa-dharan diksu
danavan grham avisat
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
These demons, the followers of Kamsa, were expert at persecuting others, especially the Vaisnavas, and could assume any form they desired. After giving these demons permission to go everywhere and persecute the saintly persons, Kamsa entered his palace.