Hadith of the Twelve Successors will be anything other than twelve. The twelve successors from the hadith (traditions of the prophet Muhammad) are already known as The Twelve Imams. Two hadiths form the basis and understanding of the 12 successors of the Prophet Muhammad: the hadith of the two weighty things and the hadiths regarding the 12 khalifs. One of the most authentic hadith (traditions of the sayings of the Prophet Muhammad) is Hadith thaqalain in which the Prophet Muhammad tells the muslims that he is leaving behind two weighty things, The quran and his ahlul bayt. Al-Tirmidhi in his Sunan records the following tradition:
Introduction to the Science of Hadith adding six terms in the process). The first pertains to the "matn" (text) of the hadith and its three divisions and 30 types. The three divisions are "ṣaḥīḥ", "ḥasan", and "ḍa`īf". The thirty types include those mentioned in hadith terminology and others. The second deals with the "isnād" (chain of narration) and comprises 11 types. These types generally fall within the discipline of biographical evaluation. The third category includes six types: the qualifications necessary for conveying hadith, the manners in which they are transmitted, the transcription of hadith, and the etiquette of the narrator and of the student. The fourth