Shiva Purana

siva.sh/siva-purana/rudra-samhita/160/1

सनत्कुमार उवाच ।। अथ वीरगणै रुद्रो रौद्ररूपो महाप्रभुः ।। अभ्यगाद्वृषभारूढस्संग्रामं प्रहसन्निव ।। १ ।।

sanskrit

Sanatkumāra said: Then the gre at lord Śiva assuming a terrible form went laughingly to the battle-field and sat on his bull, accompanied by his heroic Gaṇas.

english translation

sanatkumAra uvAca || atha vIragaNai rudro raudrarUpo mahAprabhuH || abhyagAdvRSabhArUDhassaMgrAmaM prahasanniva || 1 ||

hk transliteration by Sanscript