Judging from the fact that a phrase of admonition to monto frequently appears in "Ofumi" (Gobunsho), it is contemplated that the difference of doctrine was a problem between monto and the believers of other sects even at that time.
『御文（御文章）』には、たびたび門徒へ誡めの言葉があり、その当時から門徒と他宗の信徒との間で教義の差異についての相違が問題になっていたと考えられる。