Mahabharata 12.337.62
उमापतिर्भूतपतिः श्रीकण्ठो ब्रह्मणः सुतःउक्तवानिदमव्यग्रो ज्ञानं पाशुपतं शिवः
umāpatirbhūtapatiḥ śrīkaṇṭho brahmaṇaḥ sutaḥuktavānidamavyagro jñānaṃ pāśupataṃ śivaḥ
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book