Sunan an-Nasa'i, Hadith 1884 ⓘ
It was narrated from Umm 'Atiyyah that: the Messenger of Allah said concerning the washing of his daughter: "Start on the right and the parts that were washed in wudu."'
أَخْبَرَنَا عَمْرُو بْنُ مَنْصُورٍ، قَالَ حَدَّثَنَا أَحْمَدُ بْنُ مُحَمَّدِ بْنِ حَنْبَلٍ، قَالَ حَدَّثَنَا إِسْمَاعِيلُ، عَنْ خَالِدٍ، عَنْ حَفْصَةَ، عَنْ أُمِّ عَطِيَّةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ فِي غُسْلِ ابْنَتِهِ " ابْدَأْنَ بِمَيَامِنِهَا وَمَوَاضِعِ الْوُضُوءِ مِنْهَا " .
also referenced under: Book 21, Hadith 67 (In-Book) & Volume 3, Book 21, Hadith 1885 (DarusSalam)