Devibhagavatapurana 11.15.61

11.15.61

vṛttāntaṃ kathayāmāsa camatkṛtamatisphuṭam |
etasya kāraṇaṃ deva na jānīmaḥ kathañcana ||

“O Deva! What is the cause of all this? We cannot make out anything! O Lord! Thou art omniscient. Thou knowest everything. So kindly mention how is this brought about!” Hearing Visnu’s words. Bhagavân S’ankara spoke graciously in sweet words, grave as the rumbling of a rain-cloud:-- “O Visnu! Hear the cause of this. What wonder is there? This is all due to the greatness of Bhasma (ashes)! What cannot be brought about by Bhasma! The great S’aiva Durvâsâ went to see the Kumbhîpâka hell, besmearing his whole body with Bhasma and looked downwards while he was looking at the sinners. At that time, accidentally a particle of Bhasma from his forehead was blown by air to the bodies of the sinners in the hell. Thereby they were freed of their sins and they got so much pleasure! Such is the greatness of Bhasma! Henceforth the Kumbhîpâka will no more be a hell. It will be a Tîrtha (holy place of pilgrimage) of the residents of the Pitrilokas. Whoever will bathe there will be very happy. There is no doubt in this. Its name will be henceforth the Pitri Tîrtha.
O Sattama! My Lingam and the form of Bhagavatî ought to be placed there. The inhabitants of the Pitri Loka would worship them. This will be the best of all the Tîrthas extant in the three Lokas. And if the Pitris’varî there be worshipped, know that the worship of the Trilokî is done. Nârâyana said:-- Hearing thus the words of S’ankara, the Deva of the Devas, He thanked Him and, taking His permission came to the Devas and informed them of everything what S’ankara had said. Hearing this, the Devas nodded their heads and said, “Sadhu (well, very well)” and began to glorify the greatness of Bhasma. O Tormenter of the enemies! Hari, Brahmâ and the other Devas began to eulogise the glories of ashes. The Pitris became very glad to get a new Tîrtha. The Devas planted a S’iva Lingam and the form of the Devî on the banks of the new Tîrtha, and began to worship them regularly day by day. The sinners that were there suffering, all ascended on the celestial chariot and got up to Kailâs’a. Even today they are all dwelling in Kailâs’a and are known by the name of the Bhadras. The hell Kumbhîpâka came to be built afterwards in another place.