Asma' entered upon the Messenger of Allah ﷺ and said: Messenger of Allah, how should one of us take bath when she is purified from her menses ? He said: She should take water mixed with the leaves of lote-tree; then should perform ablution and wash her head and rub it so much so that water reaches the roots of the hair; she should then our water upon her body. Then she should take a piece of cloth (or cotton or wool) and purify with it. She asked: Messenger of Allah, how should I purify with it ? 'Aishah said: I understood what he (the Prophet) said metaphorically. I, therefore, said to her: Remove the marks of blood.

دَخَلَتْ أَسْمَاءُ عَلَى رَسُولِ اللَّهِ ﷺ فَقَالَتْ يَا رَسُولَ اللَّهِ كَيْفَ تَغْتَسِلُ إِحْدَانَا إِذَا طَهُرَتْ مِنَ الْمَحِيضِ قَالَ تَأْخُذُ سِدْرَهَا وَمَاءَهَا فَتَوَضَّأُ ثُمَّ تَغْسِلُ رَأْسَهَا وَتَدْلُكُهُ حَتَّى يَبْلُغَ الْمَاءُ أُصُولَ شَعْرِهَا ثُمَّ تُفِيضُ عَلَى جَسَدِهَا ثُمَّ تَأْخُذُ فِرْصَتَهَا فَتَطَّهَّرُ بِهَا قَالَتْ يَا رَسُولَ اللَّهِ كَيْفَ أَتَطَهَّرُ بِهَا قَالَتْ عَائِشَةُ فَعَرَفْتُ الَّذِي يَكْنِي عَنْهُ رَسُولُ اللَّهِ ﷺ فَقُلْتُ لَهَا تَتَّبِعِينَ بِهَا آثَارَ الدَّمِ