When he had spoken, Saccaka said to him, “It’s incredible, worthy Gotama, it’s amazing! How when the worthy Gotama is repeatedly attacked with inappropriate and intrusive criticism, the complexion of his skin brightens and the color of his face becomes clear, just like a perfected one, a fully awakened Buddha! I recall taking on Pūraṇa Kassapa in debate. He dodged the issue, distracting the discussion with irrelevant points, and displaying annoyance, hate, and bitterness. But when the worthy Gotama is repeatedly attacked with inappropriate and intrusive criticism, the complexion of his skin brightens and the color of his face becomes clear, just like a perfected one, a fully awakened Buddha. I recall taking on the bamboo-staffed ascetic Gosāla, Ajita of the hair blanket, Pakudha Kaccāyana, Sañjaya Belaṭṭhiputta, and the Jain ascetic of the Ñātika clan in debate. They all dodged the issue, distracting the discussion with irrelevant points, and displaying annoyance, hate, and bitterness. But when the worthy Gotama is repeatedly attacked with inappropriate and intrusive criticism, the complexion of his skin brightens and the color of his face becomes clear, just like a perfected one, a fully awakened Buddha. Well, now, worthy Gotama, I must go. I have many duties, and much to do.” “Please, Aggivessana, go at your convenience.” Then Saccaka, the son of Jain parents, having approved and agreed with what the Buddha said, rose from his seat and left.

Middle Discourses 37 The Shorter Discourse on the Ending of Craving