Hadith are secondhand accounts of other people who lived at the time of Muhammad, although many of them were written decades or sometimes hundreds of years later. And so it is a debate in the Muslim community on which Hadiths are considered more trustworthy than others. The one commonality, regardless of sect, is the centrality of the Quran and viewing that as the actual word of God. To see this a little bit more concretely in terms of how much Muslims view themselves as the same tradition that we see from the Old and New Testament, here are some Quranic quotes. And the first one essentially speaks to this core idea of being in that same tradition. He has ordained for you of religion what he enjoined upon Noah and that which we have revealed to you, O Muhammad, and what we enjoined upon Abraham and Moses and Jesus, to establish the religion and not be divided therein. And this is speaking to the importance of Abraham.