‘A'isha reported God’s messenger as saying, “The tooth-stick is a means of purifying the mouth, and is pleasing to the Lord.”
Shafi‘i, Ahmad, Darimi and Nasa’i transmitted it, and Bukhari transmitted it in his Sahih with…
Abu Ayyub reported God’s messenger as saying, “Four characteristics pertain to the practices of the messengers: modesty (but some say circumcision), the use of perfume, the use of the tooth-stick, and marriage.”
Tirmidhi…
‘A'isha said that the Prophet (ﷺ) did not awake after sleeping by night or by day without using the tooth-stick before performing ablution.
Ahmad and Abu Dawud transmitted it.
She also said, “The Prophet (ﷺ) was accustomed to use the tooth-stick and then give it to me to wash it. I would first use it myself, then wash it and hand it to him.”
Abu Dawud transmitted it.