Sunan Abu Dawood ( romanized: Sunan Abī Dāwūd) is one of the Kutub al-Sittah (six major hadith collections), collected by Abu Dawud al-Sijistani (d.889).
Abu Dawood compiled twenty-one books related to Hadith and preferred those Ahadith (plural of "Hadith") which were supported by the example of the companions of Muhammad.
The traditions in Sunan Abu Dawood are divided in three categories. The first category consists of those of the traditions that are mentioned by Bukhari and/or Muslim. The second type of traditions are those which fulfil the conditions of Bukhari or Muslim.