During (Sudatta's) last period of poverty, when all the people had fled or perished and only he and his wife remained, they had five measures of rice that would nourish them for five days. At that time, five people -- Mahakashyapa, Shariputra, Ananda, Rahula and Shakyamuni buddha -- came one after another to beg for the five measures of rice, which Sudatta gave them. From that day on, Sudatta was the wealthiest man in all India, and he built Jetavana Monastery. From this, you should understand all things.
(WND, 1086)
Nam-Myoho-Renge-Kyo is the answer, no matter the question.