SB 6.7.25
tad visvarupam bhajatasu vipram
tapasvinam tvastram athatmavantam
sabhajito ’rthan sa vidhasyate vo
yadi ksamisyadhvam utasya karma
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
O demigods, I instruct you to approach Visvarupa, the son of Tvasta, and accept him as your guru. He is a pure and very powerful brahmana undergoing austerity and penances. Pleased by your worship, he will fulfill your desires, provided that you tolerate his being inclined to side with the demons.
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Lord Brahma advised the demigods to accept the son of Tvasta as their spiritual master although he was always inclined toward the benefit of the asuras.