Hadith 6-in-1 Free is the ad-supported version of the app "Hadith 6-in-1". The app brings you all six hadith books also known as Kutub al-Sittah or Sihah Sitta (meaning "The Authentic Six"). The six books included are: 1) Sahih al-Bukhari. 2) Sahih Muslim. 3) Sunan an-Nasa'i. 4) Sunan Abu-Dawood. 5) Jami at-Tirmidhi. 6) Sunan ibn-Majah.