Tahzirun Na'as a book which is Banned and this was the same book which Ahmadiyaa used to defend there case in the court.
Says "To the common people, the expression "Khaatim-un-Nabiy-yeen"means the "last Prophet". To the knowing people this is not a correct view. Even if a Prophet was to be born after the holy Prophet (Sallal Laahu 'Alaihi Wa Sallam) it would still have no effect on the concept of the finality of Muhammad (Sallal Laahu 'Alaihi Wa Sallam). (Tahzeerun-Naas,Pages 3 and 25)."
Same concept Mirzayee has they say that there Zilli Nabi has come which has no effect on the finality of Muhammad (Sallal Laahu 'Alaihi Wa Sallam)