- A’ishah (may Allah be pleased with her) who said: “The Messenger of Allah (peace and blessings of Allah be upon him) said, ‘Siwaak cleanses the mouth and pleases the Lord.’” (Reported by [??] al-Bukhaari in his Saheeh, 2/274, and by [??] Ahmad, 6/47, and al-Nisaa’i, 1/50. Its isnaad is saheeh, see al-Irwa’ 1/105).
- Use of the siwaak is repeatedly encouraged, as in the hadeeth of Abu Hurayrah (may Allah be pleased with him), who reported that the Prophet (peace and blessings of Allah be upon him) said: “Were it not for the fact that I did not want to make things too hard for my ummah, I would have commanded them to use the siwaak at every time of prayer.” (Reported by al-Bukhaari, 2/299 and Muslim, 1/151). According to another report narrated by al-Bukhaari, he said: “…at every time of making wudoo’.”
- Hudhayfah ibn al-Yamaan (may Allah be pleased with him) reported that when the Prophet (peace and blessings of Allah be upon him) got up during the night, he would clean his mouth thoroughly with the siwaak. (Reported by al-Bukhaari, 1/98 and Muslim, 1/220)
- A’ishah was asked what the Messenger of Allah (peace and blessings of Allah be upon him) did when he first came home. She said, “When he entered his house, the first thing he would do was to use the siwaak.” (Reported by Muslim, 1/220).