Sunan Abi Dawud 79
سنن أبي داود#79SahihNarrated Ibn 'Umar: The males and females during the time of the Apostle of Allaah ( sal Allahu alayhi wa sallam ) used to perform the ablution from one vessel together. The wordings "from one vessel" occur in the version of Musaddad
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 ZaiSahih Bukhari (193)
In-book reference: 1:79