Itmam-e-Hujjah Of Prophet Muhammad (sws)
Because it happened in the light of known history (i.e. histroic era as compared to prehistoric era ). There is no real academic debate on the historical authenticity of these events. The institution of prophethood came to an end because of two factors: 1 ) Conditions conducive to Quran’s permanent preservation happened due to which Hidayah is available to everyone. 2 ) The incident of Shahdah ( itmam-e-hujjat/completion of proof ) happened in the light of known history. Torah does’t contain inzar and basharat because prophets were there to perform this function and in turn, Bani-Israel was to perform it on the rest of the nations.