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: :thinking:](https://discourse.suttacentral.net/images/emoji/twitter/thinking.png?v=12)
This previous topic/discussion may be of help:
![:anjal: :anjal:](https://scdd.sfo2.cdn.digitaloceanspaces.com/uploads/original/2X/1/10115aa595e190463ac04a79d97cad71165e928a.gif?v=12)
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