[1] The Prajapati Sutapa and his wife Pṛśni worshipped Vishnu with such devotion that he himself appeared before them for granting a boon.
In the first janma in Satya Yuga, Vishnu was born as Prsnigarba, the son of Sutapa and Pṛśni.
In the second life, during the Treta Yuga, he was born as Vamana, the son of Aditi and Kasyapa.
In the third life, towards the end of Dvapara Yuga, he was born as Krishna, the son of Vasudeva and Devaki.
[3] According to the Guruvayur Sthala Purana, the deity of Guruvayur was originally given to Pṛśni and Sutapa during the Satya Yuga by Brahma, and it was following the worship of Hari in his four-armed form, that Prsnigarba was born to Pṛśni and Sutapa.