Srimad Bhagavatam Canto 10, Chapter 78, Text 24

SB 10.78.24

yasmad asav iman vipran
 adhyaste pratiloma-jah
dharma-palams tathaivasman
 vadham arhati durmatih
 
Translation: 
 
[Lord Balarama said:] Because this fool born from an improperly mixed marriage sits above all these brahmanas and even above Me, the protector of religion, he deserves to die.
Srimad Bhagavatam Canto 10, Chapter 78, Text 23
Srimad Bhagavatam Canto 10, Chapter 78, Text 25-26