Hadith it". This led to "the almost complete neglect" of traditions from Companions and others. Collections of ahadith sometimes mix those of Muhammad with the reports of others. Muwatta Imam Malik is usually described as "the earliest written collection of hadith" but sayings of Muhammad are “blended with the sayings of the companions”, (822 hadith from Muhammad and 898 from others, according to the count of one edition). In "Introduction to Hadith" by Abd al-Hadi al-Fadli, "Kitab Ali" is referred to as "the first hadith book of the "Ahl al-Bayt" (family of Muhammad) to be written on the authority of the
Introduction to the Science of Hadith category, which comprises 21 types, relates to the names of the narrators. This includes the definition of a "ṣaḥābī" (companion), a "tābi`ī" (follower), the time periods of narrators, names and paidonymics among others. Later scholars included additional types of hadith in their own works, with some almost reaching 100. The "Introduction" became the basis for subsequent books in hadith terminology. A number of subsequent scholars followed Ibn al-Ṣalāḥ in the ordering of his book, including al-Nawawī, Ibn Kathīr, al-ʻIraqi, al-Bulqīnī, Ibn al-Jamā`ah, al-Tabrīzī, al-Ṭībī and al-Zirkashī. In many instances this influence was direct, with numerous scholars authoring books indicating its