Bhagavatapurana 2.4.22

2.4.22

pracoditā yena purā sarasvatī vitanvatājasya satīṃ smṛtiṃ hṛdi /
svalakṣaṇā prādurabhūt kilāsyataḥ sa me ṛṣīṇām ṛṣabhaḥ prasīdatām //

22. May the Supreme Sage of sages be gracious unto me; in the beginning Saraswati in (all) her essential graces (accompanied with all) the (necessary) Branches of Learning issued from his mouth, urged on by Him who kindles perfect memory (necessary for creation) in the mind of Brahma, (who is pleased to unfold the thought of creation in the mind of Brahma).