Srimad Bhagavatam Canto 09, Chapter 09, Text 11

SB 9.9.11

rathena vayu-vegena
 prayantam anudhavati
desan punanti nirdagdhan
 asiñcat sagaratmajan
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Bhagiratha mounted a swift chariot and drove before mother Ganges, who followed him, purifying many countries, until they reached the ashes of Bhagiratha’s forefathers, the sons of Sagara, who were thus sprinkled with water from the Ganges.
Srimad Bhagavatam Canto 09, Chapter 09, Text 10
Srimad Bhagavatam Canto 09, Chapter 09, Text 12