Srimad Bhagavatam Canto 10, Chapter 52, Text 26

SB 10.52.26

tad avetyasitapangi
 vaidarbhi durmana bhrsam
vicintyaptam dvijam kañcit
 krsnaya prahinod drutam
 
Translation: 
 
Dark-eyed Vaidarbhi was aware of this plan, and it deeply upset her. Analyzing the situation, she quickly sent a trustworthy brahmana to Krsna.
Srimad Bhagavatam Canto 10, Chapter 52, Text 25
Srimad Bhagavatam Canto 10, Chapter 52, Text 27