Shiva Purana
सर्वोपमंत्रैर्मंत्राध्वा व्याप्तः परमविद्यया ॥ यथा शिवो न तत्त्वेषु गण्यते तत्त्वनायकः ॥ ७ ॥
He was pervaded by all the sub-mantras and by the supreme knowledge. Just as Lord Shiva is not counted among the elements he is the leader of the elements.
english translation
sarvopamaMtrairmaMtrAdhvA vyAptaH paramavidyayA ॥ yathA zivo na tattveSu gaNyate tattvanAyakaH ॥ 7 ॥
hk transliteration by Sanscript