Shiva Purana
तं दृष्ट्वा ध्यानसंयुक्तं ज्ञात्वा तत्पुरुषं शिवम्॥ प्रणनाम ततो बुद्ध्या गायत्रीं शांकरीं विधिः॥१९॥
Seeing Him engaged in meditation, I knew that person to be auspicious. Then Vidhi bowed down to Gayatri Shankari with his intellect.
english translation
taM dRSTvA dhyAnasaMyuktaM jJAtvA tatpuruSaM zivam॥ praNanAma tato buddhyA gAyatrIM zAMkarIM vidhiH॥19॥
hk transliteration by Sanscript