Shiva Purana
सर्वदेवशरीरोत्थं तेजस्तदतिभीषणम् ॥ संघीभूयाभवन्नारी साक्षान्महिषमर्दिनी ॥ १३॥
That highly terrible splendour issuing forth from the bodies of the gods joined together and became a woman Mahiṣamardinī herself.
english translation
sarvadevazarIrotthaM tejastadatibhISaNam ॥ saMghIbhUyAbhavannArI sAkSAnmahiSamardinI ॥ 13॥
hk transliteration by Sanscript