Hi friends,
As I understand from MN 81 (With Ghaṭikāra) and its agama parallel MA 63, our Buddha Gotama was a disciple (the brahmin student Jotipāla) of the previous Buddha Kassapa:
"… Ghaṭīkāra then said to the Blessed One Kassapa, accomplished and fully enlightened: ‘Venerable sir, this is the brahmin student Jotipāla, my friend, my close friend. Let the Blessed One teach him the Dhamma.’
“Then the Blessed One Kassapa, accomplished and fully enlightened, instructed, urged, roused, and gladdened Ghaṭīkāra the potter and Jotipāla the brahmin student with an exposition of the Dhamma. At the conclusion of the exposition, having delighted and rejoiced in the Blessed One Kassapa’s words, they rose from their seats, and after paying homage to the Blessed One Kassapa, accomplished and fully enlightened, keeping him on their right, they departed.
“Then Jotipāla asked Ghaṭīkāra: ‘Now that you have heard this Dhamma, my dear Ghaṭīkāra, why don’t you go forth from the home life into homelessness?’—‘My dear Jotipāla, don’t you know that I support my blind and aged parents?’—‘Then, my dear Ghaṭīkāra, I shall go forth from the home life into homelessness.’
“So Ghaṭīkāra the potter and Jotipāla the brahmin student went to the Blessed One Kassapa, accomplished and fully enlightened. After paying homage to him, they sat down at one side and Ghaṭīkāra the potter said to the Blessed One Kassapa, accomplished and fully enlightened: ‘Venerable sir, this is the brahmin student Jotipāla, my friend, my close friend. Let the Blessed One give him the going forth.’ **And the brahmin student Jotipāla received the going forth from the Blessed One Kassapa, accomplished and fully enlightened, and he received the full admission. … ** (Ven. Bodhi’s translation)
“This Dhamma” apparently refers to the four noble truths. It’s reasonable to assume that Jotipāla, with such good kamma and wisdom, went forth due to his understanding of “this Dhamma” and his faith in the Blessed One Kassapa, and then he was at least a faith follower at the time of going forth. Since faith followers are destined for awakening to at least the stream entry during that life, Jotipāla would be at least a stream winner when leaving human world, and later reborn in the Tusita heaven.
It’s also reasonable to assume that he was a once returner when departing the Tusita heaven and coming to the human world, destined for the final awakening.
Therefore, the right path to Buddhahood is precisely this noble eight-fold path, not the way taught in Mahayana school.
Metta,
Starter