Mahabharata 12.203.21

अनाद्यं यत्परं ब्रह्म न देवा नर्षयो विदुःएकस्तद्वेद भगवान्धाता नारायणः प्रभुः

anādyaṃ yatparaṃ brahma na devā narṣayo viduḥekastadveda bhagavāndhātā nārāyaṇaḥ prabhuḥ

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