Sunan an-Nasai Book 21, Hadith 1890

أَخْبَرَنَا عَمْرُو بْنُ زُرَارَةَ، قَالَ حَدَّثَنَا إِسْمَاعِيلُ، عَنْ أَيُّوبَ، عَنْ مُحَمَّدٍ، عَنْ أُمِّ عَطِيَّةَ، قَالَتْ أَتَانَا رَسُولُ اللَّهِ صلى الله عليه وسلم وَنَحْنُ نَغْسِلُ ابْنَتَهُ فَقَالَ ‏"‏ اغْسِلْنَهَا ثَلاَثًا أَوْ خَمْسًا أَوْ أَكْثَرَ مِنْ ذَلِكِ إِنْ رَأَيْتُنَّ ذَلِكِ بِمَاءٍ وَسِدْرٍ وَاجْعَلْنَ فِي الآخِرَةِ كَافُورًا أَوْ شَيْئًا مِنْ كَافُورٍ فَإِذَا فَرَغْتُنَّ فَآذِنَّنِي ‏"‏ ‏.‏ فَلَمَّا فَرَغْنَا آذَنَّاهُ فَأَلْقَى إِلَيْنَا حَقْوَهُ وَقَالَ ‏"‏ أَشْعِرْنَهَا إِيَّاهُ ‏"‏ ‏.‏ قَالَ أَوْ قَالَتْ حَفْصَةُ اغْسِلْنَهَا ثَلاَثًا أَوْ خَمْسًا أَوْ سَبْعًا ‏.‏ قَالَ وَقَالَتْ أُمُّ عَطِيَّةَ مَشَطْنَاهَا ثَلاَثَةَ قُرُونٍ ‏.‏

It was narrated from Ayyub, from Muhammad, that Umm 'Atiyyah said:"The Messenger of Allah came to us when we were washing his daughter. He said: 'Wash her three times, or five, or more than that if you think that (is necessary), with water and lotus leaves, and put camphor, or some camphor in (the water) the last time. And when you have finished, inform me.' When we finished, we informed him and he threw his waist-wrap to us and said: 'Shroud her in it."' He said: "Hafsah said: 'We washed her three, or five, or seven times.' Umm 'Atiyyah said: 'We combed her hair into three braids