Shiva Purana
एवं परस्परापेक्षा शक्तिशक्तिमतोः स्थिता ॥ न शिवेन विना शक्तिर्न शक्त्या च विना शिवः ॥ १२ ॥
Thus the mutual dependence of the two powers is established. There is no power without Lord Śiva, and no power without Lord Śiva.
english translation
evaM parasparApekSA zaktizaktimatoH sthitA ॥ na zivena vinA zaktirna zaktyA ca vinA zivaH ॥ 12 ॥
hk transliteration by Sanscript