رِيَاضُ الصَّالِحِينَ
Riyad as-Salihin 722
The Book of Good Manners
Excellence of Using the Right Hand for Performing Various Good Acts
وَعَنْ أُمِّ عَطِيَّةَ رَضِيَ اللَّهُ عَنْهَا أَنَّ النَّبِيَّ صَلَّى اللَّه عَلَيْهِ وسلمى اللَّه عَلَيْهِ وَسَلَّمَ ، قَالَ لَهُنَّ فِي غُسْلِ ابْنَتِهِ زينب رَضِيَ اللَّه عَنْهَا : ابْدَأْنَ بِمَيَامِنِهَا وَمَوَاضِعِ الْوُضُوءِ مِنْهَا ((مُتَّفَقٌ عَلَيْهِ)) .
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'. [Al-Bukhari and Muslim].
Riyad as-Salihin, 722