Shiva Purana
व्यापकाय पदस्यान्ते परमात्मन इत्यपि ॥ शिवज्योतिश्चतुर्थ्यन्तं विश्वभूतपदम्पुनः ॥ ३७॥
At the end of the term for the pervasive, it is also called the Supreme Soul. Shivajyoti is the fourth end of the Visvabhutapada.
english translation
vyApakAya padasyAnte paramAtmana ityapi ॥ zivajyotizcaturthyantaM vizvabhUtapadampunaH ॥ 37॥
hk transliteration by Sanscript