Sunan an-Nasa'i 322
سنن النسائي#322SahihIt was narrated that Abu Dharr said:"The Messenger of Allah (ﷺ) said: 'Clean earth is the Wudu' of the Muslim, even if he does not find water for ten years
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 ZaiHasan
In-book reference: 1:323