Hadith
حَدَّثَنَا أَبُو كَامِلٍ، وَحَدَّثَنَا إِسْمَاعِيلُ، حَدَّثَنَا خَالِدٌ، عَنْ حَفْصَةَ بِنْتِ سِيرِينَ، عَنْ أُمِّ عَطِيَّةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ لَهُنَّ فِي غُسْلِ ابْنَتِهِ " ابْدَأْنَ بِمَيَامِنِهَا وَمَوَاضِعِ الْوُضُوءِ مِنْهَا " .
Narrated Umm 'Atiyyah :The Messenger of Allah (ﷺ) said to them while washing her daughter: Begin with her right side, and the places where the ablution is performed
Sahih · Al-Albani
Sunan Abi Dawud 3145 ·Book 21, Hadith 57·Also available on sunnah.com·