Summary of chapter 122 of the Agni Mahā Purana is as follows:
The supreme sanctity of the river Gaṅgā is celebrated in elaborate praise. Agni narrates how Gaṅgā descended from Brahma's kamaṇḍalu, flowed through Viṣṇu's toe (Viṣṇupadī), and was caught in Śiva's jaṭā before blessing the earth through the tapas of Bhagīratha. Even the dust of the Gaṅgā's bank, the sound of the name "Gaṅgā" uttered from afar, and water mingled with a single drop of Gaṅgā-jala purify the sinner. The chapter specifies the especially potent ghāṭas and their associated deities, and the particular benefit of a Gaṅgā bath on solar and lunar eclipses.