ataeva bhagavata-sutrera 'artha'-rupa
nija-krta sutrera nija-'bhasya'-svarupa
ataeva—therefore; bhagavata—Srimad-Bhagavatam; sutrera—of the Brahma-sutra; artha—of the meaning; rupa—the form; nija-krta—made by himself; sutrera—of the Vedanta-sutra; nija-bhasya—of his own commentary; svarupa—the original form.
"Srimad-Bhagavatam gives the actual meaning of the Vedanta-sutra. The author of the Vedanta-sutra is Vyasadeva, and he himself has explained those codes in the form of Srimad-Bhagavatam.
Link to this page: https://prabhupadabooks.com/cc/madhya/25/142