This was true and Ibn Masood may Allah be pleased with him didn’t think in the beginning that it was Quran and he thought that it was only Dua’a. However, after the consensus of the companions and the collection and compilation of the Quran, he conceded and he included them in his well-known recitation which is one of the famous seven.

As far as I know that Ibn Masood RadhiAllahuanhu did not count the final two Surahs in his Mushaf and there is a clear cut narration in Bukhari regarding that…. …But some poeple say that it is not possible as he is one of the scholars of the Qur’an? What is the correct view and this also opens the door of hadith rejection?