Srimad Bhagavatam Canto 10, Chapter 49, Text 15

SB 10.49.15

sama-duhkha-sukho ’kruro
 viduras ca maha-yasah
santvayam asatuh kuntim
 tat-putrotpatti-hetubhih
 
Translation: 
 
Both Akrura, who shared Queen Kunti’s distress and happiness, and the illustrious Vidura consoled the Queen by reminding her of the extraordinary way her sons had taken birth.
 
Purport: 
 
Akrura and Vidura reminded Queen Kunti that her sons were born of heavenly gods and thus could not be vanquished like ordinary mortals. In fact, an extraordinary victory awaited this most pious family.
Srimad Bhagavatam Canto 10, Chapter 49, Text 14
Srimad Bhagavatam Canto 10, Chapter 49, Text 16