(8) باب السِّوَاكِ يَوْمَ الْجُمُعَةِ
Narrated Anas:
Allah's Messenger (ﷺ) said, "I have told you repeatedly to use the Siwak. (The Prophet (ﷺ) put emphasis on the use of the Siwak.)
Reference: Sahih al-Bukhari 888
In-book reference: Book 11, Hadith 13
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 2, Book 13, Hadith 13