Itmam-e-Hujjah Of Prophet Muhammad (sws)
I mean as bani israel had to do inzar other nations as well as a ummah….so as other nations were not awared of there language and themselves there would have been not puristined possiblity if having complete right interpretations of things because if pt. I mentioned abive….so there wouod have been inly 1 way to solve it that to continously send prophets in bani israel so that itmam hujjat would be preserved by process of continuation….due to which interpretations were preserved…which made bani israel then able to do inzar process on other nations as well….as a ummah…