Skandapurana 16.239

Īśvara said: / Next, O great goddess, one should go to the one situated near the Hiraṇyā, / called Nāgarāditya, which destroys all diseases.

Formerly, by King Satrājit who had gone to Dvāravatī, / the high-souled Yādava, the Sun was worshipped.

Having undertaken a great observance, by the wise son of Nighna, / the Sun, being pleased with him, gave him the Syamantaka jewel.

Endowed with devotion, vows, and austerity, that jewel yields every day / eight bhāras of pure gold constantly.

Again addressed by the Sun, 'Choose a boon, O fair-faced one,' / he spoke to the lord of the gods of gods, the Sun who wards off thieves:

'If you are pleased with me, O god, and grant a boon, / be present perpetually right here in this sacred hermitage.'

Having said, 'So it shall be,' the Sun, / applauding the boon of King Satrājit, disappeared right there.

A radiant image of the god of gods, the Sun, / was also installed right there by that son of Nighna, O lady of fair complexion.

Amid the sounds of conches and kettledrums and abundant chants of the Veda, / then having summoned all the Nāgara [brahmins], the best among twice-born,

bowing down and having granted an unequalled means of livelihood, he said: / 'By the grace of your feet and indeed by the favor of the Sun,

having accomplished fierce austerity, this image has been installed by me. / Brought from Indra's realm to here, having conquered Śakra, by the enemy of the gods,

the son of the Ten-necked [Rāvaṇa], it was installed formerly in Laṅkā. / But having slain him, by Rāma, accompanied by Lakṣmaṇa,

it was brought to Ayodhyā, embodying the victory of the son of Sumitrā. / It was offered to Vasiṣṭha, the son of Mitra and Varuṇa;

and by him, being pleased, it was given to me in Dvārakā. / And it was installed here by me, knowing this to be an unequalled sacred field.

What is the use of speaking much here? By you it must be protected / with care in every way as long as the moon, sun, and stars endure. / Therefore, this auspicious image has been entrusted to you by me,

to the Nāgara brahmins residing in the city of Someśa. / Therefore, the name Nāgarāditya indeed was given by me.'

The brahmins said:
"We will completely protect the god. / As long as the earth, moon, and sun endure, as long as the ocean remains, / so long will your fame be imperishable in this place."

Having spoken thus, all those eminent Nāgara brahmins [agreed]; / the king also, pleased, then departed for the city of Dvāravatī.

Īśvara said:
Hear, O goddess, I shall explain the fruit obtained when it is seen: / The fruit of a hundred cows properly gifted at Prayāga, / that fruit one obtains from the darśana of Nāgarārka.

Who else is capable of removing the afflictions of poverty, grief, and sorrow / in the holy sacred field of Prabhāsa, except for Nāgarabhāskara?

Those dull-witted people who suffer from afflictions such as captivity and leprosy, / do not know of the physician Nāgarabhāskara there.

The man who, having bathed in the water of Hiraṇyā, worships him, / is glorified in the world of Sūrya for thousands of crores of kalpas.

When the sun enters [a zodiacal sign] on the seventh day of the bright fortnight, / that seventh day, beloved of the sun, is renowned as Mahājayā.

Bathing, giving gifts, recitation, fire offering, and worship of ancestors and gods— / all this is declared ten million times magnified, according to the word of the sun.

He who feeds a single brahmin there in the presence of Sūrya / has fed ten million, so said the blessed Hari.

This which has been related to you by me was not spoken before, O fair-faced one. / The man who hears it with devotion goes to the abode of the sun.

Hear from me, O goddess, the secret names of Sūrya. / Enough with a thousand names! Recite this auspicious hymn:

Vikartana, Vivasvat, Mārtaṇḍa, Bhāskara, Ravi, / Illuminator of the World, Illustrious, Eye of the World, Lord of the Planets,

Witness of the World, Lord of the Three Worlds, Creator, Destroyer, Dispeller of Darkness, / Burning One, Scorcher, Pure One, Having Seven Horses as His Mount,

Ray-Handed One, Brahmā, and He Who Is Revered by All Gods— / this is known as the twenty-one-named hymn to Nāgarārka.

Renowned as the king of hymns, it grants an increase in bodily health.

O great goddess, whoever praises Nāgarārka with this [hymn] / at both twilights, sunset and sunrise, obtains his desired fruit.

Thus ends the two hundred and thirty-ninth chapter, entitled 'The Description of the Māhātmya of Nāgarārka,' in the first [part], the Prabhāsakṣetramāhātmya, of the seventh [section], the Prabhāsakhaṇḍa, in the glorious Skandapurāṇa, a compendium of eighty-one thousand [verses].