Shiva Purana

siva.sh/siva-purana/kotirudra-samhita/15/3

यदा पृथ्वीं समाक्रम्य कैलासं पुनरागतः ।। कुमारस्स शिवापुत्रस्तारकारिर्महाबलः ।। ३ ।।

sanskrit

When he conquered the earth and returned to Kailas The young man was the son of Shiva and was a mighty savior.

english translation

yadA pRthvIM samAkramya kailAsaM punarAgataH || kumArassa zivAputrastArakArirmahAbalaH || 3 ||

hk transliteration by Sanscript