Shiva Purana

siva.sh/siva-purana/rudra-samhita/62/49

ब्रह्मोवाच ।। देवदेव महादेव करुणासागर प्रभो ।। स्वतंत्रः परमात्मा त्वं परमेशो द्वयोव्ययः।। ।।४९।।

sanskrit

Brahmā said: O great lord, lord of devas, O lord, O ocean of mercy, Thou art the independent great soul, the great Śiva, unchanging and without a second.

english translation

brahmovAca || devadeva mahAdeva karuNAsAgara prabho || svataMtraH paramAtmA tvaM paramezo dvayovyayaH|| ||49||

hk transliteration by Sanscript