Mahabharata 7.57.79

तस्य तन्मतमाज्ञाय प्रीतः प्रादाद्वरं भवःतच्च पाशुपतं घोरं प्रतिज्ञायाश्च पारणम्

tasya tanmatamājñāya prītaḥ prādādvaraṃ bhavaḥtacca pāśupataṃ ghoraṃ pratijñāyāśca pāraṇam

Our plain-language meaning of this verse is waiting for scholar review.