Sunan Abi Dawud 56
سنن أبي داود#56SahihNarrated Aisha, Ummul Mu'minin: Ablution water and tooth-stick were placed by the side of the Prophet (ﷺ). When he got up during the night (for prayer), he relieved himself, then he used the tooth-stick
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Shuaib Al ArnautSahih
Zubair Ali ZaiIsnaad Hasan
In-book reference: 1:56