To find any connection between Udraka Ramaputra, Alara Kalama, Mahavira , Buddha, and Parshvanatha

Yes, indeed there is a sutta in which when Jains are referred to a fourfold practice, vow or observance is mentioned.

But I don’t recall it being clear enough for a match to what the Jain tradition were the four vows of Mahavira’s predecessor … :thinking:

This previous topic/discussion may be of help:

:anjal:

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