Shiva Purana

siva.sh/siva-purana/kotirudra-samhita/14/41

तं दृष्ट्वा शंकरो देवः प्रसन्नोऽभूत्ततः प्रभुः ।। आविर्भूय विधुं प्राह स्वभक्तं भक्तवत्सलः ।। ४१।।

sanskrit

Lord Śiva, who is favourably disposed towards his devotees, was pleased by his devotion and manifesting himself there spoke to him thus.

english translation

taM dRSTvA zaMkaro devaH prasanno'bhUttataH prabhuH || AvirbhUya vidhuM prAha svabhaktaM bhaktavatsalaH || 41||

hk transliteration by Sanscript