Why do sunni hadithists sects try to propagate that Quranists reject Mohammed as a Prophet?

Hadith and Quran are 2 completely different scriptures, One has nothing to do with the other. Take any hadith and then try and find an ayat in the Quran to correspond to that hadith. You will see what i mean. I am Muslim and yes I follow the Quran. I believe Messenger Muhammad was the Messenger of Allah and He ordered all of us to follow the Quran. The messenger himself never followed anything but the Quran. If you follow anything accept the Quran (as your scripture) you are not Muslim.