What about Muslims who only believe in the qur'an, not the hadith?
David Wood comes to the rescue and explains a few of the major reasons that Muslims who reject the Hadith are in trouble.
To critique Muhammad's life and teachings, we often quote the Hadith. An increasing number of Muslims, however, reject the Hadith, claiming that they only believe in the Quran. What should we think of these "Quran-Only Muslims" (who are regarded as heretics by orthodox Muslims)? David Wood discusses the issue in this 5 minute video.