Jami` at-Tirmidhi 609
جامع الترمذي#609Da'ifAnas bin Malik narrated that :the Messenger of Allah said: The acceptable Wudu is with two Ratils of water
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirSahih
Al-AlbaniSahih
Zubair Ali ZaiDaif
In-book reference: 6:66