Shiva Purana
तिरोभावो द्विधा भिन्न एको रुद्रादिगोचरः ॥ अन्यश्च देहभावेन पशुवर्गस्य सन्ततेः ॥ ६ ॥
Tirobhāva is twofold. One concerns Rudra, the other the individual souls in view of their physical bodies.
english translation
tirobhAvo dvidhA bhinna eko rudrAdigocaraH ॥ anyazca dehabhAvena pazuvargasya santateH ॥ 6 ॥
hk transliteration by Sanscript