Is the Quran the primary source of religious guidance for Islam, or is it one of the primary sources of Islam (the other sources being the Sunnah and the Hadiths). Is the Quran sufficient in itself for a Muslim to practise Islam?
If the Quran is insufficient in itself, how can this even be called the word of God? Are the other sources (Sunnah and Hadiths) supposed to be preserved just as the Quran is said to be preserved? If not, how can one rely on them. What proof is there that they are not corrupted or fabricated. Do not many hadiths contradict other hadiths? By what criterion does one judge which is authentic?
I have researched this on the internet and I am getting contradictory and confusing answers.
Gal 1:8 But though we, or an angel from heaven, preach any other gospel unto you than that which we have preached unto you, let him be accursed.