Teachings of Rishabha is found in the chapters 4, 5 and 6 of Skandha V of Srimad Bhagavata Purana.
Your pursuit should be the pursuit of the only knowledge
worthwhile; the knowledge of Brahman.
Surrender yourself to the Lord. Dedicate your actions to
Him. Listen to stories about Him and keep the company of the devotees of the
Lord.
Hate no one because everyone is an image of the Lord.
Share the pain of others.
Control anger.
Be alone with yourselves whenever you can because solitude
helps you to think of the Lord.
Do your duties properly. Do not neglect any of them.
Speak sparingly and think more.