Devibhagavatapurana 9.4.60

9.4.60

bhṛguruvāca |
brahmanbrahmavidāṃ śreṣṭha brahmajñānaviśārada |
sarvajña sarvajanaka sarveśa sarvapūjita ||

Once on a time Bhrîgu asked Brahmâ the Lord of all, and adored by all, thus:-- “O Brahmân! Thou art the foremost of those that know the Vedas; there is none equal to thee in matters regarding the knowledge of the Vedas (so much so that there is nothing that is not known to thee; for all these have sprung from thee). Now say about the Vis'vajaya Kavacha of the Devî Sarasvatî, that is excellent, without any faults and embodying in it all the properties of all the Mantras.”