رياض الصالحينAbū Zakariyyā Muḥyī al-Dīn Yaḥyā ibn Sharaf al-Nawawī٢١٥ - باب فضل السواك وخصال الفطرة
On the authority of Abu Hurayra (may Allah be pleased with him): that the Messenger of Allah ﷺ said: "Were it not that I would impose hardship upon my nation — or upon the people — I would have commanded them to use the tooth-stick (siwāk) with every prayer." Agreed upon.
On the authority of Ḥudhayfa (may Allah be pleased with him), who said: When the Messenger of Allah ﷺ rose from sleep, he would scrub his mouth with the tooth-stick. Agreed upon. "Al-shawṣ" means rubbing and scrubbing.
On the authority of ʿĀʾisha (may Allah be pleased with her), who said: We used to prepare for the Messenger of Allah ﷺ his tooth-stick and his water for purification, and Allah would rouse him whenever He willed to rouse him during the night; then he would use the tooth-stick, perform ablution, and pray. Narrated by Muslim.
On the authority of Anas (may Allah be pleased with him), who said: The Messenger of Allah ﷺ said: "I have urged you much regarding the tooth-stick." Narrated by al-Bukhārī.
On the authority of Shurayḥ ibn Hāniʾ, who said: I asked ʿĀʾisha (may Allah be pleased with her): With what would the Prophet ﷺ begin when he entered his house? She said: With the tooth-stick. Narrated by Muslim.
On the authority of Abu Mūsā al-Ashʿarī (may Allah be pleased with him), who said: I came in to the Prophet ﷺ while the tip of the tooth-stick was upon his tongue. Agreed upon, and this is the wording of Muslim.
On the authority of ʿĀʾisha (may Allah be pleased with her): that the Prophet ﷺ said: "The tooth-stick is a means of purifying the mouth and a means of pleasing the Lord." Narrated by al-Nasāʾī and Ibn Khuzayma in his Ṣaḥīḥ with sound chains of transmission.
On the authority of Abu Hurayra (may Allah be pleased with him), from the Prophet ﷺ, who said: "Five things are part of the natural disposition (fiṭra) — or five things are of the fiṭra: circumcision, shaving the pubic hair, trimming the nails, plucking the underarm hair, and clipping the moustache." Agreed upon. "Al-istiḥdād" means shaving the pubic region — that is, shaving the hair around the private parts.
On the authority of ʿĀʾisha (may Allah be pleased with her), who said: The Messenger of Allah ﷺ said: "Ten things are part of the natural disposition (fiṭra): clipping the moustache, letting the beard grow, the tooth-stick, drawing water up into the nose, trimming the nails, washing the finger-joints, plucking the underarm hair, shaving the pubic region, and cleansing with water." The narrator said: I have forgotten the tenth, unless it was rinsing the mouth. Wakīʿ — one of its narrators — said: "Cleansing with water" means istinjāʾ (cleansing the private parts with water). Narrated by Muslim. "Al-barājim," with a single-dotted bāʾ and a jīm, are the creases of the finger-joints; and "letting the beard grow" means that one does not trim anything from it.
On the authority of Ibn ʿUmar (may Allah be pleased with them both), from the Prophet ﷺ, who said: "Trim the moustaches closely and let the beards grow." Agreed upon.