Rāmāyaṇacampū 1.13

1.13

Now, when Daśaratha, his mind grieved by childlessness, was consulting with his ministers to perform the horse sacrifice for the sake of obtaining sons, Sumantra, his heart glad, related to this Daśaratha the ancient event told by Sanatkumāra: that the birth of princes would surely come about through the grace of the son of Vibhāṇḍaka, the great sage Ṛṣyaśṛṅga, who was adept at suppressing the drought that had befallen the country of Aṅga.
He, too, having his anxiety pacified by the words of Sumantra, brought that sage, his relative, whose household consisted of Śāntā; and having performed on the bank of the Sarayū the horse sacrifice ordained by Vasiṣṭha, he began to perform according to rule the sacrifice for offspring there.
Thereupon all the hosts of gods, headed by Śatamakha [Indra], having descended to earth to receive the sacrificial offerings, reported to the four-faced [Brahmā] their burning by the heat of the summer sun that was the might of the Ten-faced One; and considering the wielder of the Śārṅga bow as their refuge, they approached the Ocean of Milk with him, having commenced various praises.
The assembly of the thirty [gods] beheld a dark storm-cloud named Vaikuṇṭha, / which dispels the torment of all the worlds, lovely with the Śārṅga bow, / with a body possessing the fine lustre of a cluster of flax flowers and flashing with the lightning of Lakṣmī, / providing refuge for the cātaka birds of the minds of sages, and yielding the water of compassion: (13)