Skandapurana 16.196

Īśvara said: / Then one should go, O great goddess, to Prabhāsa situated in the water, / situated to the south of Vṛddhaprabhāsa, not very far away.

Hear the supreme māhātmya of that very god, O goddess.

When Rama, the son of Jamadagni, slaughtered the kṣatriyas, / then, O passionate lady, a deep remorse arose in his heart.

Thereupon he worshipped Mahādeva, the lord of gods, / having undertaken severe austerity for many series of years, O dear one.

Then Mahādeva, well-pleased, appeared before his eyes, / and said: “I am ready to grant a boon. Choose a boon, O one of noble vows!”

Rāma said: / “If you are pleased with me, O god, if a boon is to be granted to me, / show your own liṅga that was covered with the thunderbolt at the sacrifice.

Great remorse has arisen in me from slaying these many kṣatriyas; / may my remorse be destroyed by the darśana of your liṅga,

and likewise all my sin, through your grace, O Śaṃkara.”

Śaṃkara said: / “My liṅga kept rising again and again, but the Thousand-eyed One (Indra) / repeatedly covers it with his thunderbolt, overcome by great fear.

I shall not appear to your darśana in the form of [that] liṅga at any time.

As for your saying to me, ‘I am filled with remorse and sin,’ / I shall destroy that for you through the touch [of another], O best of brahmins.

In this holy reservoir of water, in the midst of the water, O highly intelligent one, / a great liṅga will arise; behold it with darśana.

All your remorse will depart, and you will become free from sin.” / Having spoken thus, O fair-faced lady, it arose from the midst of the water.

Therefore its name on the earth's surface became Jalaprabhāsa. / Merely by touching it, O goddess, a man goes to the realm of Śiva.

Whoever feeds here a single brahmin of commended vows, / by him have I been fed along with my wife; there is no doubt.

This origin of Jalaprabhāsa has been recounted to you by me. / When heard, it quells sin and bestows the fruit of all desires.

Thus ends the one hundred and ninety-sixth chapter, named “Description of the Māhātmya of Jalaprabhāsa,” in the first [sub-section], Prabhāsakṣetramāhātmya, of the seventh section, Prabhāsakhaṇḍa, in the glorious Skanda Mahāpurāṇa, a compendium of eighty-one thousand [verses].