Shiva Purana
एष देवो महादेवः सर्वज्ञो जगदीश्वरः । अयं तु परया भक्त्या दृश्यते नाऽन्यथा क्वचित् १२ ।
This deity is the great Lord (Mahādeva), the all-knowing, the Lord of the universe, He is seen only through supreme devotion, and not otherwise anywhere.
english translation
eSa devo mahAdevaH sarvajJo jagadIzvaraH । ayaM tu parayA bhaktyA dRzyate nA'nyathA kvacit 12 ।
hk transliteration by Sanscript