Srimad Bhagavatam Canto 06, Chapter 09, Text 06

SB 6.9.6

brahma-hatyam añjalina
 jagraha yad apisvarah
samvatsarante tad agham
 bhutanam sa visuddhaye
bhumy-ambu-druma-yosidbhyas
 caturdha vyabhajad dharih
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Although Indra was so powerful that he could neutralize the sinful reactions for killing a brahmana, he repentantly accepted the burden of these reactions with folded hands. He suffered for one year, and then to purify himself he distributed the reactions for this sinful killing among the earth, water, trees and women.
Srimad Bhagavatam Canto 06, Chapter 09, Text 05
Srimad Bhagavatam Canto 06, Chapter 09, Text 07