Sunan an-Nasa'i 418
سنن النسائي#418SahihIt was narrated that Maimunah said:"The Messenger of Allah (ﷺ) performed Wudu' as for prayer, but did not wash his feet, and he washed his private part and whatever had got onto it, then he poured water over himself, then he moved his feet and washed them." She said: "This is Ghusl from Janabah
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih Isnaad
Al-AlbaniSahih Isnaad
Zubair Ali ZaiSahih
In-book reference: 4:23