Shiva Purana

siva.sh/siva-purana/uma-samhita/46/13

सर्वदेवशरीरोत्थं तेजस्तदतिभीषणम् ।। संघीभूयाभवन्नारी साक्षान्महिषमर्दिनी ।। १३।।

sanskrit

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