Sahih Bukhari Volume 1, Book 4, Hadith Number 246Sahih Bukhari Book 4. Ablutions (Wudu') Narated By Hudhaifa : Whenever the Prophet got up at night, he used to clean his mouth with Siwak. Related Previous Post Sahih Bukhari Volume 1, Book 4, Hadith Number 247 Next Post Sahih Bukhari Volume 1, Book 4, Hadith Number 245