Nichiren, advocating Shikakakugen (four dictums blaming other sects), mentioned that if one depends on heresy, not on Hoke-kyo Sutra (the Lotus Sutra) or Nam Myoho Renge-kyo Sutra (Devotion to the Law of Hokekyo), one would encounter onan (横難) or oshi (横死) as retribution.
日蓮は四箇格言を掲げて、法華経あるいは南無妙法蓮華経に依らず、邪教に依ると、その報いとして横難や横死に遇うと述べた。