One verse

Srimad Bhagavatam 7.15.73

7.15.73

तावद्दास्यामहं जज्ञे तत्रापि ब्रह्मवादिनाम् । शुश्रूषयानुषङ्गेण प्राप्तोऽहं ब्रह्मपुत्रताम् ॥ ७३ ॥

tavad dasyam aham jajne tatrapi brahma-vadinam susrusayanusangena prapto ’ham brahma-putratam

tavat
since being cursed
dasyam
in the womb of a maidservant
aham
I
jajne
took birth
tatrapi
although (being a sudra)
brahma-vadinam
unto persons well conversant with the Vedic knowledge
susrusaya
by rendering service
anusangena
simultaneously
praptah
obtained
aham
I
brahma-putratam
a birth as the son of Lord Brahma (in this life).

Although I took birth as a sudra from the womb of a maidservant, I engaged in the service of Vaisnavas who were well-versed in Vedic knowledge. Consequently, in this life I got the opportunity to take birth as the son of Lord Brahma.