Srimad Bhagavatam Canto 10, Chapter 23, Text 13

SB 10.23.13

tad upakarnya bhagavan
 prahasya jagad-isvarah
vyajahara punar gopan
 darsayan laukikim gatim
 
Translation: 
 
Hearing what had happened, the Supreme Personality of Godhead, the Lord of the universe, simply laughed. Then He again addressed the cowherd boys, showing them the way men act in this world.
 
Purport: 
 
By laughing, Lord Krsna indicated to the cowherd boys that they need not be angry at the ritualistic brahmanas but should understand that one who begs will often be refused.
Srimad Bhagavatam Canto 10, Chapter 23, Text 12
Srimad Bhagavatam Canto 10, Chapter 23, Text 14