Srimad Bhagavatam Canto 09, Chapter 20, Text 34

SB 9.20.34

tasyasan nrpa vaidarbhyah
 patnyas tisrah susammatah
jaghnus tyaga-bhayat putran
 nanurupa itirite
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
O King Pariksit, Maharaja Bharata had three pleasing wives, who were daughters of the King of Vidarbha. When all three of them bore children who did not resemble the King, these wives thought that he would consider them unfaithful queens and reject them, and therefore they killed their own sons.
Srimad Bhagavatam Canto 09, Chapter 20, Text 33
Srimad Bhagavatam Canto 09, Chapter 20, Text 35