Chapter 1: Purification (Kitab Al-Taharah)

Narrated Ammar b. Yasir: The Apostle of Allaah ( sal Allaahu alayhi wa sallam ) said: The rinsing of mouth and snuffing up water in the nose are acts that bear the characteristics of fitrah (nature). He then narrated a similar tradition (as reported by Aishah), but he did not mention the words "letting the beard grow". He added the words "circumcision" and "sprinkling water on the private part of the body". He did not mention the words "cleansing oneself after easing". Abu Dawud said: A similar tradition has been reported on the authority of Ibn 'Abbas. He mentioned only five sunnahs all relating to the head, one of them being parting of the hair; it did not include wearing the beard. Abu Dawud said: The tradition as reported by Hammad has also been transmitted by Talq b. Habib, Mujahid, and Bakr b. 'Abd Allaah b. al-Muzani as their own statement ( not as a tradition from the Prophet, sal Allaahu alayhi wa sallam ). They did not mention the words "letting the beard grow". The version transmitted by Muhammad b. Abd Allaah b. Abi Maryam, Abu Salamah, and Abu Hurairah from the Prophet ( sal Allaahu alayhi wa sallam ) mentions the words "letting the beard grow". A similar tradition has been reported by Ibrahim al-Nakha' i. He mentioned the words "wearing the beard and circumcision."
Sunan Abi Dawud 54
Chapters
1 Purification (Kitab Al-Taharah) 2 Prayer (Kitab Al-Salat) 3 The Book Of The Prayer For Rain (Kitab al-Istisqa') 4 Prayer (Kitab Al-Salat): Detailed Rules of Law about the Prayer during Journey 5 Prayer (Kitab Al-Salat): Voluntary Prayers 6 Prayer (Kitab Al-Salat): Detailed Injunctions about Ramadan 7 Prayer (Kitab Al-Salat): Prostration while reciting the Qur'an 8 Prayer (Kitab Al-Salat): Detailed Injunctions about Witr 9 Zakat (Kitab Al-Zakat) 10 The Book of Lost and Found Items 11 The Rites of Hajj (Kitab Al-Manasik Wa'l-Hajj) 12 Marriage (Kitab Al-Nikah) 13 Divorce (Kitab Al-Talaq) 14 Fasting (Kitab Al-Siyam) 15 Jihad (Kitab Al-Jihad) 16 Sacrifice (Kitab Al-Dahaya) 17 Game (Kitab Al-Said) 18 Wills (Kitab Al-Wasaya) 19 Shares of Inheritance (Kitab Al-Fara'id) 20 Tribute, Spoils, and Rulership (Kitab Al-Kharaj, Wal-Fai' Wal-Imarah) 21 Funerals (Kitab Al-Jana'iz) 22 Oaths and Vows (Kitab Al-Aiman Wa Al-Nudhur) 23 Commercial Transactions (Kitab Al-Buyu) 24 Wages (Kitab Al-Ijarah) 25 The Office of the Judge (Kitab Al-Aqdiyah) 26 Knowledge (Kitab Al-Ilm) 27 Drinks (Kitab Al-Ashribah) 28 Foods (Kitab Al-At'imah) 29 Medicine (Kitab Al-Tibb) 30 Divination and Omens (Kitab Al-Kahanah Wa Al-Tatayyur) 31 The Book of Manumission of Slaves 32 Dialects and Readings of the Qur'an (Kitab Al-Huruf Wa Al-Qira'at) 33 Hot Baths (Kitab Al-Hammam) 34 Clothing (Kitab Al-Libas) 35 Combing the Hair (Kitab Al-Tarajjul) 36 Signet-Rings (Kitab Al-Khatam) 37 Trials and Fierce Battles (Kitab Al-Fitan Wa Al-Malahim) 38 The Promised Deliverer (Kitab Al-Mahdi) 39 Battles (Kitab Al-Malahim) 40 Prescribed Punishments (Kitab Al-Hudud) 41 Types of Blood-Wit (Kitab Al-Diyat) 42 Model Behavior of the Prophet (Kitab Al-Sunnah) 43 General Behavior (Kitab Al-Adab)