صَحِيحُ مُسْلِمٍ
Sahih Muslim 939 h
The Book of Prayer - Funerals
Washing the deceased
وَحَدَّثَنَا يَحْيَى بْنُ يَحْيَى، أَخْبَرَنَا هُشَيْمٌ، عَنْ خَالِدٍ، عَنْ حَفْصَةَ بِنْتِ سِيرِينَ، عَنْ أُمِّ عَطِيَّةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم حَيْثُ أَمَرَهَا أَنْ تَغْسِلَ ابْنَتَهُ قَالَ لَهَا ابْدَأْنَ بِمَيَامِنِهَا وَمَوَاضِعِ الْوُضُوءِ مِنْهَا .
Umm 'Atiyya reported that when the Messenger of Allah (ﷺ) asked her to wash his daughter, he told her to start from the right side, and with those parts of the body over which Wudu' is performed.
Sahih Muslim, 939 hSahihصحيح