Shiva Purana
देवो गुणत्रयातीतः सर्वज्ञः सर्वकृत्प्रभुः ॥ ओमित्येकाक्षरे मंत्रे स्थितोहं सर्वगश्शिवः ॥ ४॥
I am the lord far beyond the attributes, the omniscient and the omnipotent. I am Śiva pervading all but stationed in the single-syllabled mantra Om.
english translation
devo guNatrayAtItaH sarvajJaH sarvakRtprabhuH ॥ omityekAkSare maMtre sthitohaM sarvagazzivaH ॥ 4॥
hk transliteration by Sanscript