Markandeyapurana 45.72

45.72

jalañca kṣipati brahmā sa tathā prakṛtirvibhu /
avyaktaṃ kṣetramudiṣṭaṃ brahmā kṣetrajña ucyate //

Hear thou, moreover, briefly of him who is spoken of by the name Brahmā. Just as one sunk in water, on emerging from it, seems to be born from water[32] and flings the water away, so Brahmā is both Prakṛti and the Soul.[33] The Imperceptible is declared to be his sphere of action;[34] hence Brahmā is called Kṣetra-jña, the Soul. A man should know all these characteristics of the Soul and its sphere of action.