Shiva Purana
संवर्तुलं तु तद्रूपं दृष्ट्वा संज्ञा विवस्वतः ॥ असहंती ततश्छायामात्मनस्साऽ सृजच्छुभाम् ॥ ६ ॥
On seeing the brilliance of the sun as unbearable as the fire at the final dissolution she created Chāyā of herself.
english translation
saMvartulaM tu tadrUpaM dRSTvA saMjJA vivasvataH ॥ asahaMtI tatazchAyAmAtmanassA' sRjacchubhAm ॥ 6 ॥
hk transliteration by Sanscript