As I reflect on things, it is preached in the “Teacher of the Dharma” chapter of the Lotus Sūtra, fascicle 4, “Suppose there is an evil person with a wicked mind who ceaselessly slandered a Buddha for as long as a kalpa (aeon). The sin of such a person would still be considered minor when compared to a person who abused with just a word a faithful believer, clergy or laity, who reads or recites the Lotus Sūtra.” Grand Master Miao-lê interprets this passage stating, “We can say this because the Lotus Sūtra is profound in doctrine and excellent in merit. We cannot say the same about other sutras.”

Hōren-shō, Letter to Hōren, Writings of Nichiren Shōnin, Volume 6, Followers I, Page 43