Shiva Purana
यत्तत्स्मृतं कारणमप्रमेयं ब्रह्मा प्रधानं प्रकृतेः प्रसूतिः ॥ अनादिमध्यान्तमनन्तवीर्यं शुक्लं सुरक्तं पुरुषेण युक्तम् ॥ ४६ ॥
What is called as the unmanifest cause is Pradhāna. Brahmā is the progeny of Prakṛti. The Pradhāna has neither beginning nor middle nor end. Its prowess is infinite. It is white and deep red. It is associated with Puruṣa.
english translation
yattatsmRtaM kAraNamaprameyaM brahmA pradhAnaM prakRteH prasUtiH ॥ anAdimadhyAntamanantavIryaM zuklaM suraktaM puruSeNa yuktam ॥ 46 ॥
hk transliteration by Sanscript