SB 4.5.4
tam kim karomiti grnantam aha
baddhañjalim bhagavan bhuta-nathah
daksam sa-yajñam jahi mad-bhatanam
tvam agrani rudra bhatamsako me
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
When that gigantic demon asked with folded hands, “What shall I do, my lord?” Lord Siva, who is known as Bhutanatha, directly ordered, “Because you are born from my body, you are the chief of all my associates. Therefore, kill Daksa and his soldiers at the sacrifice.”
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Here is the beginning of competition between brahma-tejas and siva-tejas. By brahma-tejas, brahminical strength, Bhrgu Muni had created the Rbhu demigods, who had driven away the soldiers of Lord Siva stationed in the arena. When Lord Siva heard that his soldiers had been driven away, he created the tall black demon Virabhadra to retaliate. There is sometimes a competition between the mode of goodness and the mode of ignorance. That is the way of material existence. Even when one is situated in the mode of goodness, there is every possibility that his position will be mixed with or attacked by the mode of passion or ignorance. That is the law of material nature. Although pure goodness, or suddha-sattva, is the basic principle in the spiritual world, pure manifestation of goodness is not possible in this material world. Thus, the struggle for existence between different material qualities is always present. This quarrel between Lord Siva and Bhrgu Muni, centering around Prajapati Daksa, is the practical example of such competition between the different qualitative modes of material nature.