Shiva Purana
परब्रह्म महेशस्य शक्तिराद्या सनातनी ॥ उमा या समभिख्याता त्रैलोक्यजननी परा ॥ ३॥
The first primordial Śakti of Śiva the great Brahman, who is called Umā, is the great mother of the three worlds.
english translation
parabrahma mahezasya zaktirAdyA sanAtanI ॥ umA yA samabhikhyAtA trailokyajananI parA ॥ 3॥
hk transliteration by Sanscript