SB 5.3: Ṛṣabhadeva’s Appearance in the Womb of Merudevī, the Wife of King Nābhi
In this chapter the spotless character of King Nābhi, the oldest son of Āgnīdhra, is described. Wanting to have sons, Mahārāja Nābhi underwent severe austerities and penances. He performed many sacrifices along with his wife and worshiped Lord Viṣṇu, master of all sacrifices. Being very kind to His devotees, the Supreme Personality of Godhead was very pleased with the austerities of Mahārāja Nābhi. He personally appeared before the King in His four-handed feature, and the priests who were performing the sacrifices, began to offer their prayers unto Him. They prayed for a son like the Lord, and Lord Viṣṇu agreed to take birth in the womb of Merudevī, the wife of King Nābhi, and incarnate as King Ṛṣabhadeva.