Sahih Muslim Book - 11, Hadith - 2174

وَحَدَّثَنَا عَمْرٌو النَّاقِدُ حَدَّثَنَا يَزِيدُ بْنُ هَارُونَ أَخْبَرَنَا هِشَامُ بْنُ حَسَّانَ عَنْ حَفْصَةَ بِنْتِ سِيرِينَ عَنْ أُمِّ عَطِيَّةَ قَالَتْ أَتَانَا رَسُولُ اللَّهِ -صلى الله عليه وسلم- وَنَحْنُ نَغْسِلُ إِحْدَى بَنَاتِهِ فَقَالَ « اغْسِلْنَهَا وِتْرًا خَمْسًا أَوْ أَكْثَرَ مِنْ ذَلِكِ ». بِنَحْوِ حَدِيثِ أَيُّوبَ وَعَاصِمٍ وَقَالَ فِى الْحَدِيثِ قَالَتْ فَضَفَرْنَا شَعْرَهَا ثَلاَثَةَ أَثْلاَثٍ قَرْنَيْهَا وَنَاصِيَتَهَا.

It was narrated that Umm 'Atiyyah said: "The Messenger of Allah (s.a.w) came to us while we were washing one of his daughters and said: 'Wash her an odd number of times, five or more than that,'" a Hadith similar to that of Ayyub and "Asim (no. 2174). And he said in the Hadith: "She said: 'And we put her hair in three braids, two at the sides and one at the front."