The beginning of the Jain dharma.
When Lord Sri Krishna was present on this planet, a person named Paundraka imitated the four-handed Narayana and declared himself the Supreme Personality of Godhead. He desired to compete with Krishna. Similarly, during the time of Lord Rsabhadeva, King Arhat the King of Konka and Venka acted like a Paramahamsa and imitated Lord Rsabhadeva. He introduced a system of religion and took advantage of the fallen condition of the people in this age of Kali. King Arhat, being bewildered, gave up the Vedic principles, which are free from risk, and concocted a new system of a religion opposed to the Vedas. That was the beginning of the Jain dharma. Jains refer to Lord Rsabhadeva as their original preceptor. If such people are serious followers of Rsabhadeva, they must also take His instructions. Rsabhadeva gave His one hundred sons instructions whereby they could become free from the clutches of Maya. If one actually follows Rsabhadeva, he will certainly be delivered from the clutches of Maya and return home, back to Godhead.
Source: A.C. Bhaktivedanta Swami Prabhupada (2014 edition), “Srimad Bhagavatam”, Fifth Canto, Chapter 06 – Text 09 & 12