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 ﷺ قَالَ فِي غُسْلِ ابْنَتِهِ " ابْدَأْنَ بِمَيَامِنِهَا وَمَوَاضِعِ الْوُضُوءِ مِنْهَا " .