مقامات ارتیکل نمبر 30 (Quran Taking Precedence Over Words Of Prophets)
Since, Quran hasnt changed over time and there is no confusion about it to be word of God. Hence, every thing will be judged according to it. Hadith literature has not reached us through twatur its historical record. If we come across any Prophetic saying we will understand it under the light of Quran. You will find following thread helpful Discussion 1042