Mahabharata 12.181.20

आदिदेवसमुद्भूता ब्रह्ममूलाक्षयाव्ययासा सृष्टिर्मानसी नाम धर्मतन्त्रपरायणा

ādidevasamudbhūtā brahmamūlākṣayāvyayāsā sṛṣṭirmānasī nāma dharmatantraparāyaṇā

Our plain-language meaning of this verse is waiting for scholar review.