SB 4.10.29
dhruve prayuktam asurais
tam mayam atidustaram
nisamya tasya munayah
sam asamsan samagatah
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
When the great sages heard that Dhruva Maharaja was overpowered by the illusory mystic tricks of the demons, they immediately assembled to offer him auspicious encouragement.