Kindly refer to the following link(s):
Hadith Rejectors -
Rejectors of hadith
Innovators must provide Evidence from the Qur'an or Sunnah
Is it ok to rely only on the Qur'an and not Hadith or Sunnah? | Sheikh Assim Al Hakeem
Diff between Quran, Sunnah, and Hadith Al Qudsi
How to know if hadith books are unchanged and preserved?
People who only follow Quran and reject hadiths & sunnah - Apostates? (Quraniyoon)
Ruling on a person who rejects a single hadith from Sahih hadiths (Sahih Bukhari)