Matsyapurana 121.30

121.30

dṛśyate bhāsurā rātrau devī tripathagā tu sā
antarikṣaṃ divaṃ caiva bhāvayitvā bhuvaṃ gatā //

Indra attained bliss by performing sacrifices on that spot along with the Devas. Here is the milky way of heaven, the centre of the starry nebulæ. The Ganges appears to shed splendid lustre there at night. She has descended on the earth, having purified the Heaven and sky (Antarikṣa).—29-30.