Talhah b. 'Ubaid Allah said: A man from among the people of Najd with disheveled hair came to the Messenger of Allah (ﷺ). The humming sound of his voice could be heard but what he was saying could not be understood. He came closer and it was then known that he was asking about Islam. The Messenger of Allah (ﷺ) said: Five times of prayer each day and night: He asked: Must I observe any more than them? He replied: No, unless you do it voluntarily. He (Talhah) said that the Messenger of Allah (ﷺ) mentioned fasting during the month of Ramadan. He asked: Must I observe anything else? He replied: No, unless you do it voluntarily. The Messenger of Allah (ﷺ) mentioned Zakat to him. He asked: Must I pay anything else? He replied: No, unless you do it voluntarily. The man then turned away saying: I swear by Allah, I shall not add anything to this or fall short of it. The Messenger of Allah (ﷺ) said: The man will be successful if he speaks truth.
Sunan Abi Dawud 391
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)