Srimad Bhagavatam Canto 10, Chapter 30, Text 29

SB 10.30.29

dhanya aho ami alyo
 govindanghry-abja-renavah
yan brahmesau rama devi
 dadhur murdhny agha-nuttaye
 
Translation: 
 
O girls! The dust of Govinda’s lotus feet is so sacred that even Brahma, Siva and the goddess Rama take that dust upon their heads to dispel sinful reactions.
 
Purport: 
 
According to Srila Visvanatha Cakravarti, who quotes from sastra, each day in the late afternoon, as Krsna returned from the cow pastures with His cowherd boyfriends, great demigods like Brahma and Siva would come down from heaven and take the dust of His feet.
 
Great personalities like the goddess Rama (the wife of Visnu), Siva and Brahma are not at all sinful. But in the ecstasy of pure Krsna consciousness they feel themselves fallen and impure. Thus, desiring to purify themselves, they blissfully take the dust of the Lord’s lotus feet on their heads.
Srimad Bhagavatam Canto 10, Chapter 30, Text 28
Srimad Bhagavatam Canto 10, Chapter 30, Text 30