Srimad-Bhagavatam: Canto 9 - Chapter 1 - Verse 11
Sanskrit:
रथेन वायुवेगेन प्रयान्तमनुधावती ।देशान्पुनन्ती निर्दग्धानासिञ्चत्सगरात्मजान् ॥ ११ ॥
ITRANS:
rathena vāyu-vegenaprayāntam anudhāvatīdeśān punantī nirdagdhānāsiñcat sagarātmajān
Translation:
Bhagīratha mounted a swift chariot and drove before mother Ganges, who followed him, purifying many countries, until they reached the ashes of Bhagīratha’s forefathers, the sons of Sagara, who were thus sprinkled with water from the Ganges.