Um 'Atiyya said that they had entwined the hair of the daughter of Messenger of Allah ﷺ in three braids. They first undid her hair, washed and then entwined it in three braids."  

حَدَّثَتْنَا أُمُّ عَطِيَّةَ ؓ أَنَّهُنَّ جَعَلْنَ رَأْسَ بِنْتِ رَسُولِ اللَّهِ ﷺ ثَلاَثَةَ قُرُونٍ نَقَضْنَهُ ثُمَّ غَسَلْنَهُ ثُمَّ جَعَلْنَهُ ثَلاَثَةَ قُرُونٍ