Shiva Purana

siva.sh/siva-purana/saturda-samhita/2/16

अष्टमूर्त्यात्मना विश्वमधिष्ठायास्थितं शिवम् ।। भजस्व सर्वभावेन रुद्रं परमकारणम् ।। १६ ।।

sanskrit

Worship Śiva who presides over the universe in the eightfold forms with all devotion. Worship Rudra, the great cause.

english translation

aSTamUrtyAtmanA vizvamadhiSThAyAsthitaM zivam || bhajasva sarvabhAvena rudraM paramakAraNam || 16 ||

hk transliteration by Sanscript