Writings of Nichiren Daishonin, Soka Gakkai, v1, p. 326, SGI's footnote: "According to The Garland of Birth Stories, one day the god Vishvakarman disguised himself as a dove and Shakra changed himself into a hawk to test King Shibi. The hawk pursued the dove, which flew into King Shibi’s robes for protection. To save the dove, Shibi offered his own flesh to the hungry hawk. King Shibi was Shakyamuni in one of his past existences when he was carrying out the paramita of almsgiving."
