Hadith root of why there is no single "fiqh" system, but rather a collection of parallel systems within Islam. Much of early Islamic history available today is also based on the hadith, although it has been challenged for its lack of basis in primary source material and the internal contradictions of the secondary material available. Hadith may be "hadith qudsi" (sacred hadith) — which some Muslims regard as the words of God (Arabic: Allah) — or "hadith sharif" (noble hadith), which are Muhammad's own utterances. According to as-Sayyid ash-Sharif al-Jurjani, the hadith qudsi differ from the Quran in that the former
Criticism of Hadith to be obsessed with isr’iliyyat, i.e. tales from Jewish lore about earlier prophets. According to author Israr Ahmed Khan, traditional methods used to establish authenticity of hadith rely almost entirely on the personal characters of the reported narrators, and fail to pay enough attention to the actual content of the hadith being evaluated. Among the problems he sees in the traditional hadith analysis are: the inability of some narrators to maintain preciseness of the report, textual conflicts among reports, ignoring textual analysis when the hadith was reported by a narrator of good character, and probability of fabrication of hadith. Related