Another story of the Buddha's enlightenment, this one from Mara's viewpoint. In this story, Mara is crying out to his troops about his failure to defeat the Buddha, noting that he (Mara) has helped many people receive things, just as the Buddha is said to have done:
"And he, what proof has he given of his generosity?" continued Mara. "What sacrifices has he made? Who will bear witness to his kindness?"
Whereupon a voice came out of the earth, and it said:
"I will bear witness to his generosity."
Mara was struck dumb with astonishment. The voice continued:
"Yes, I, the Earth, I, the mother of all beings, will bear witness to his generosity. A hundred times, a thousand times, in the course of his previous existences, his hands, his eyes, his head, his whole body have been at the service of others. And in the course of this existence, which will be the last, he will destroy old age, sickness and death. As he excels you in strength, Mara, even so does he surpass you in generosity."
And the Evil One saw a woman of great beauty emerge from the earth, up to her waist. She bowed before the hero, and clasping her hands, she said: "O most holy of men, I bear witness to your generosity."
Then she disappeared.
And Mara, the Evil One, wept because he had been defeated.
The Life of Buddha, by A. Ferdinand Herold, tr. by Paul C Blum , at sacred-texts.com