Srimad Bhagavatam Canto 09, Chapter 20, Text 38

SB 9.20.38

mudhe bhara dvajam imam
 bhara dvajam brhaspate
yatau yad uktva pitarau
 bharadvajas tatas tv ayam
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Brhaspati said to Mamata, “You foolish woman, although this child was born from the wife of one man through the semen discharged by another, you should maintain him.” Upon hearing this, Mamata replied, “O Brhaspati, you maintain him!” After speaking in this way, Brhaspati and Mamata both left. Thus the child was known as Bharadvaja.
Srimad Bhagavatam Canto 09, Chapter 20, Text 37
Srimad Bhagavatam Canto 09, Chapter 20, Text 39