1. The name described in the Sutra of the Collected Stories of the Buddha’s Deeds in Past Lives. When Shakyamuni was born, his father had a Brahman make a prophecy concerning the child’s future. At that time the Brahman named the baby Sun Seed.
2. Chapter two of the Lotus Sutra says, “At that time Shāriputra, wishing to state his meaning once more, spoke in verse form, saying: ‘Sun of Wisdom, great sage and venerable one, at long last you preach this Law.’”