This question was from a Hindu
That Islam is based on tawheed oness of Allah (god) if I believe that God has no image no idol not begotten doesn't have wife or child and believe in his uniqueness BUT don't accept prophet Muhammad saw and quran to be relevant to him, still do I have chance to enter jannah.
From my point of view he is correct because there are many hadiths which the PRIMORDIAL SIN in islam that puts you in hell for eternity is shirk and it will be not forgived otherwise you have chance....and there is hadiths which says a man came to prophet claimed that he has love for surah ikhlas then the prophet saw said your love for this surrah will enter you jannah ( indicating that to enter jannah aleast you have to be monotheist)