The following are authors of Sihahus-Sitta except

Malik b. Anas is not an author of Sihahus-Sitta. The term "Sihahus-Sitta" refers to the six most authentic collections of Hadith in Sunni Islam, and the authors are commonly known as the "Kutub al-Sittah" or the "Six Books". These six books are: 1. Sahih al-Bukhari, compiled by Imam Bukhari 2. Sahih Muslim, compiled by Muslim b. al-Hajjaj 3. Sunan Abu Dawud, compiled by Abu Dawud 4. Jami at-Tirmidhi, compiled by at-Tirmidhi 5. Sunan an-Nasa'i, compiled by an-Nasa'i 6. Sunan Ibn Majah, compiled by Ibn Majah Malik b. Anas is the author of the Muwatta, which is also a collection of Hadith but is not considered one of the Sihahus-Sitta.