Riyad as-SalihinChapter 1Hadith 43
Full Sharh — Riyad as-Salihin 43
وعن أم عطية رضي الله عنها أن النبي صلى الله عليه وسلمى الله عليه وسلم ، قال لهن في غسل ابنته زينب رضي الله عنها : "ابدأن بميامنها ومواضع الوضوء منها" ((متفق عليه)) .
English Translation
Umm 'Atiyyah (May Allah be pleased with her) reported:: The Prophet (ﷺ) instructed us at the time of washing the dead body of his daughter Zainab (May Allah be pleased with her) to begin with her right side, and from the parts that are washed in Wudu'..
Source
Riyad as-Salihin(رياض الصالحين)
The Book of Good Manners
Hadith Number
43