Sunan an-Nasa'i 255
سنن النسائي#255SahihIt was narrated that 'Aishah said:"If the Prophet (ﷺ)" - (one of the narrators) 'Amr said: "If the Messenger of Allah (ﷺ)" - "wanted to eat or sleep while he was Junub, he would perform Wudu'." In his narration, 'Amr (one of the narrators) added: "Wudu' was for prayer
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih Muslim
In-book reference: 1:256