<Li> Sunan ibn Majah, collected by Ibn Majah (d . 273 AH, 887 CE), over 4,000 ahadith </Li> <Li> Muwatta Malik, collected by Imam Malik (d . 179 AH, 795 CE), 1,720 ahadith </Li> <P> The first two, commonly referred to as the Two Sahihs as an indication of their authenticity, contain approximately seven thousand hadiths altogether if repetitions are not counted, according to Ibn Hajar . </P> <P> According to the Cambridge History of Iran: "After this period commences the age of the authors of the six canonical collections of Sunni hadith, all of whom were Persian, except Imam Malik . The authors of the six collections are as follows: </P>

Which is the most authentic book of hadith