Hadith are "expressed in Muhammad's words", whereas the latter are the "direct words of God". A "hadith qudsi" need not be a "sahih" (sound hadith), but may be "da‘if" or even "mawdu‘". An example of a "hadith qudsi" is the hadith of Abu Hurairah who said that Muhammad said: When God decreed the Creation He pledged Himself by writing in His book which is laid down with Him: My mercy prevails over My wrath. In the Shia school of thought, there are two fundamental viewpoints of Hadith: The Akhbari view and the Usuli view. The Usuli scholars stress the importance of
Criticism of Hadith hadith literature in general, especially in al‐Bukhārī, that were taken from haggadic literature. He then studied the ways of and how these narrations were transmitted to hadith literature. According to Taylor’s opinion, a large amount of the oral information, narrations, stories, and folkloric information entered in Islamic literature in general, and hadith literature, in particular, during the transcription of the Talmud and Mishnah and after the formation of hadiths via the Jews living in the Arabian Peninsula, as well as the church fathers and Christian community." Other scholars have different opinions on the same subject: Franz Buhl connects the ahadith