Svāyambhuva Manu had a son named Mahārāja Priyavrata, and among Priyavrata’s sons was Āgnīdhra. From Āgnīdhra was born Nābhi, whose son was known as Ṛṣabhadeva.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
प्रियव्रतो नाम सुतो मनोः स्वायम्भुवस्य यः । तस्याग्नीध्रस्ततो नाभिरृषभस्तत्सुतः स्मृतः
priyavrato nāma suto manoḥ svāyambhuvasya yaḥ | tasyāgnīdhrastato nābhirṛṣabhastatsutaḥ smṛtaḥ
SB 11.2.15