Shiva Purana
शक्त्यादि च पृथिव्यन्तं शिवतत्त्वसमुद्भवम् ॥ व्याप्तमेकेन तेनैव मृदा कुंभादिकं यथा ॥ २० ॥
Everything from Śakti to Earth is born of Śivatattva and pervaded by it alone just as pot etc. are pervaded by clay.
english translation
zaktyAdi ca pRthivyantaM zivatattvasamudbhavam ॥ vyAptamekena tenaiva mRdA kuMbhAdikaM yathA ॥ 20 ॥
hk transliteration by Sanscript