Muwatta Malik 145
موطأ مالك#145SahihYahya related to me from Malik from Ibn Shihab from Humayd ibn Abdar-Rahman ibn Awf that Abu Hurayra said, "Were it not that he would be overburdening his community he (the Messenger of Allah, may Allah bless him and grant him peace,) would have ordered them to use a tooth-stick with each wudu
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Salim al-HilaliMauquf Sahih
In-book reference: 2:114