It is said in the Lotus Sūtra, fascicle 8 (chapter 28): “If someone will uphold, read, and recite this sūtra in the future, his wishes will be fulfilled, and he will receive a happy reward in his present life.” It is said also: “If someone reveres and praises the Lotus Sūtra, he will receive a real reward in his present life.” Regarding these two passages, the eight characters meaning “he will receive a happy reward in his present life” and another eight characters meaning “he will receive a real reward in this life;” if these sixteen characters are not realized and I, Nichiren, do not receive a great reward in this life; the golden worlds of the Buddha would be as worthless as the empty words of Devadatta, and the testimony of the Buddha of Many Treasures would be no different from the lies of Kokālika, the disciple of Devadatta. All the people who slander the Lotus Sūtra would not fall into the Hell of Incessant Suffering, and there would be no Buddhas throughout life in the past, present and future. Therefore, I urge you, my disciples, to practice Buddhism as preached in the Lotus Sūtra without sparing your life and put Buddhism to proof once for all. Namu Myōhō Renge Kyō! Namu Myōhō Renge Kyō!”

Senji-shō, Selecting the Right time: A Tract by Nichiren, the Buddha’s Disciple, Writings of Nichiren Shōnin, Doctrine 1, Page 249