Sunan Abu Dawud
94
Sahih+3

Narrated Umm Umarah: Habib al-Ansari reported: I heard Abbad ibn Tamim who reported on the authority of my grandmother, Umm Umarah, saying: The Prophet (ﷺ) wanted to perform ablution. A vessel containing 2/3 mudd of water was brought to him

SahihAl-Albani
SahihMuhammad Muhyi Al-Din Abdul Hamid