Sahih Muslim Book - 3, Hadith - 748

حَدَّثَنَا عَمْرُو بْنُ مُحَمَّدٍ النَّاقِدُ وَابْنُ أَبِي عُمَرَ جَمِيعًا عَنْ ابْنِ عُيَيْنَةَ قَالَ عَمْرٌو حَدَّثَنَا سُفْيَانُ بْنُ عُيَيْنَةَ عَنْ مَنْصُورِ بْنِ صَفِيَّةَ عَنْ أُمِّهِ عَنْ عَائِشَةَ قَالَتْ سَأَلَتِ امْرَأَةٌ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ كَيْفَ تَغْتَسِلُ مِنْ حَيْضَتِهَا قَالَ فَذَكَرَتْ أَنَّهُ عَلَّمَهَا كَيْفَ تَغْتَسِلُ ثُمَّ تَأْخُذُ فِرْصَةً مِنْ مِسْكٍ فَتَطَهَّرُ بِهَا قَالَتْ كَيْفَ أَتَطَهَّرُ بِهَا قَالَ تَطَهَّرِي بِهَا سُبْحَانَ اللَّهِ وَاسْتَتَرَ وَأَشَارَ لَنَا سُفْيَانُ بْنُ عُيَيْنَةَ بِيَدِهِ عَلَى وَجْهِهِ قَالَ قَالَتْ عَائِشَةُ وَاجْتَذَبْتُهَا إِلَيَّ وَعَرَفْتُ مَا أَرَادَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فَقُلْتُ تَتَبَّعِي بِهَا أَثَرَ الدَّمِ وقَالَ ابْنُ أَبِي عُمَرَ فِي رِوَايَتِهِ فَقُلْتُ تَتَبَّعِي بِهَا آثَارَ الدَّمِ.

It was narrated that 'Aishah said: "A woman asked the Prophet (s.a.w) how she should perform Ghusl following her menses. He told her how to perform Ghusl, then said that she should take a piece of cloth scented with musk and purify herself with it. She said: 'How do I purify myself with it?' He said: 'Purify yourself with it, Subhan-Allah (Glorious is Allah)!' and he covered his face"' - (One of the narrators) Sufyan bin 'Uyainah showed us how he covered his face with his hands - 'Aishah said: "I pulled her towards me, because I understood what the Prophet (s.a.w) meant, and I said: 'Follow the traces of blood with it."'