Shiva Purana
उपमन्युर्महाभक्तश्शिवस्य परमात्मनः ॥ याज्ञवल्क्यो महाशैवो जैमिनिर्गर्ग एव च ॥ १३॥
Upamanyu was a great devotee of Lord Śiva the Supreme Soul Yajnavalkya Mahasaiva Jaimini and Garga.
english translation
upamanyurmahAbhaktazzivasya paramAtmanaH ॥ yAjJavalkyo mahAzaivo jaiminirgarga eva ca ॥ 13॥
hk transliteration by Sanscript