Hadith of the Quran and Sunnah and believe in a different interpretation of this related hadith. The Sunnis and the Shi'as also disagree about what constitutes the "Sunnah". The Sunnis generally accept this hadith, but narrowly define "sunnah" as the sayings and deeds of Muhammad. Although some include the "implied approvals" of Muhammad. This hadith is considered "sahih" by the Sunni, as stated by following scholars: Shi'as reject this hadith and deem it to be a fabrication designed to distract from what they deem to be the real saying of Muhammad: the 'Hadith of the two weighty/precious things' ("Hadith al-Thaqalayn"). Since the Hadith about Quran and
Introduction to the Science of Hadith well known as of late as: "Muqaddimah Ibn al-Ṣalāḥ fi `Ulūm al-Ḥadīth", "Ibn al-Ṣalāḥ's Introduction to the Sciences of Hadith". Nūr al-Dīn `Itr, in the introduction to his edition of the "Introduction", concluded that its actual name is either "ʻUlūm al-Ḥadīth" ("The Sciences of Hadith") or "Ma`rifah Anwā`i `Ilm al-Ḥadīth" ("Familiarity with the Types of the Science of Hadith"). This is based upon the author's own usage in his own introduction in addition to the usage of other scholars in the centuries after the authoring of the book. Similar to Bint `Abd al-Raḥmān, he acknowledged that the book is most