Shiva Purana
यथाऽऽदर्शस्वरूपे च स्वीयरूपं प्रदृश्यते ॥ तथा सर्वत्रगं शम्भु पश्यतीति सुनिश्चितम् ॥ २९॥
Just as one sees one’s own form in the mirror so also the pure soul secs the all-pervading Śiva, certainly.
english translation
yathA''darzasvarUpe ca svIyarUpaM pradRzyate ॥ tathA sarvatragaM zambhu pazyatIti sunizcitam ॥ 29॥
hk transliteration by Sanscript