Rudra-prasava-varṇana
The Manifestation and Naming of Rudra / Nīlalohita
तस्मात्पशुपतेस्तस्य तनुरग्निर्निरुच्यते / तस्मादमेद्यं न दहेन्न च पादौ प्रतापयेत्
tasmātpaśupatestasya tanuragnirnirucyate / tasmādamedyaṃ na dahenna ca pādau pratāpayet
Therefore the body of Paśupati is declared to be ‘Agni’. Hence he does not burn what is impure, nor does he scorch the feet.