Srimad Bhagavatam Canto 10, Chapter 18, Text 17

SB 10.18.17

pasums carayator gopais
 tad-vane rama-krsnayoh
gopa-rupi pralambo ’gad
 asuras taj-jihirsaya
 
Translation: 
 
While Rama, Krsna and Their cowherd friends were thus tending the cows in that Vrndavana forest, the demon Pralamba entered their midst. He had assumed the form of a cowherd boy with the intention of kidnapping Krsna and Balarama.
 
Purport: 
 
Having described how Krsna and Balarama acted just like ordinary boys, Sukadeva Gosvami will now reveal one of the Lord’s transcendental pastimes that is beyond the range of human activity. According to Srila Visvanatha Cakravarti Thakura, the demon Pralamba disguised himself as a particular cowherd boy who on that day had remained at home with duties to perform.
Srimad Bhagavatam Canto 10, Chapter 18, Text 16
Srimad Bhagavatam Canto 10, Chapter 18, Text 18