Shiva Purana
अथ गुर्विन्द्रयोर्ज्ञात्वागमनं शंकरस्तयोः ॥ परीक्षितुं च तद्भावं स्वदर्शनरतात्मनोः ॥ ३ ॥
Then Lord Śiva learned of the arrival of Guru and Indra and to examine that nature of the self-seeing self.
english translation
atha gurvindrayorjJAtvAgamanaM zaMkarastayoH ॥ parIkSituM ca tadbhAvaM svadarzanaratAtmanoH ॥ 3 ॥
hk transliteration by Sanscript