Further, it is narrated that Imam Mahdi (AS) said that "the non-acceptance (inkar) of Mahdi al-Mau'ood (AS) is the non-acceptance of Prophet Muhammad (SLM), the non-acceptance of Prophet Muhammad (SLM) is the non-acceptance of the Quran and the non-acceptance of Quran is the non-acceptance of Allah."
(Insaaf Nama - Matan Sharif, N.11)