Criticism of Hadith thus provides "certainty of knowledge" of what Muhammad said, in fact it is only the much rarer subset of sahih -- "mutawatir" hadith -- that provide certain knowledge. "Mutawatir" means the report "of a large number of narrators whose agreement upon a lie is inconceivable. This condition must be met in the entire chain from the origin of the report to the very end." However, according to Wael Hallaq, "the bulk of hadith with which the traditionists dealt, and on the basis of which the Jurists derived the law" were known as "ahad" — i.e. non-"mutawatir" hadith; Hadith without "textually
Hadith of Golden Chain al-Bayt, hence called "Hadith of Golden Chain". Several Important hadith collections quoted it as "Al-Tawhid", "Ma'ani al-Akhbar", and Oyoun Akhbar Al-Ridha of al-Shaykh al-Saduq and Al-Amali of Shaykh Tusi. The hadith is also narrated in sunni hadith books. Regarding the implications of the hadith, there are two extreme opinions by Sunni scholars; While some of them discrediting the hadith by implying that the Sunni books lack it, some others claim that all Sunni scholars accepted it. According to shia, two important points may be derived from the Hadith. On one hand, monotheism takes the believers to "Allah's fortress", which is