Maitreya continued: My dear Vidura, that black person was the personified anger of the Supreme Personality of Godhead, and he was prepared to execute the orders of Lord Śiva. Thus, considering himself capable of coping with any power offered against him, he circumambulated Lord Śiva.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
आज्ञप्त एवं कुपितेन मन्युना स देवदेवं परिचक्रमे विभुम् । मेने तदात्मानमसङ्गरंहसा महीयसां तात सहः सहिष्णुम्
ājñapta evaṃ kupitena manyunā sa devadevaṃ paricakrame vibhum | mene tadātmānamasaṅgaraṃhasā mahīyasāṃ tāta sahaḥ sahiṣṇum
SB 4.5.5