Sunan Ibn Majah 627
It was narrated from Hamnah bint Jahsh that:
She experienced prolonged non-menstrual bleeding during the time of the Messenger of Allah. She came to the Messenger of Allah and said: "I am suffering prolonged and painful bleeding." He said: "Fill it with a pad of cloth." She said: "It is worse than that, it is flowing copiously." He said: "Then bind yourself with a cloth and observe your menses for six or seven days, in the knowledge of Allah, then have a bath and perform prayer and fast for twenty-three or twenty-four days. Delay Zuhr and bring 'Asr forward, and take (one) bath for both, and delay Maghrib and bring 'Isha' forward, and have (one) bath for both. That is what I prefer of the two matters.'"
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا يَزِيدُ بْنُ هَارُونَ، أَنْبَأَنَا شَرِيكٌ، عَنْ عَبْدِ اللَّهِ بْنِ مُحَمَّدِ بْنِ عَقِيلٍ، عَنْ إِبْرَاهِيمَ بْنِ مُحَمَّدِ بْنِ طَلْحَةَ، عَنْ عَمِّهِ، عِمْرَانَ بْنِ طَلْحَةَ عَنْ أُمِّهِ، حَمْنَةَ بِنْتِ جَحْشٍ أَنَّهَا اسْتُحِيضَتْ عَلَى عَهْدِ رَسُولِ اللَّهِ ـ صلى الله عليه وسلم ـ فَأَتَتْ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ فَقَالَتْ إِنِّي اسْتُحِضْتُ حَيْضَةً مُنْكَرَةً شَدِيدَةً ‏.‏ قَالَ لَهَا ‏"‏ احْتَشِي كُرْسُفًا ‏"‏ ‏.‏ قَالَتْ لَهُ إِنَّهُ أَشَدُّ مِنْ ذَلِكَ إِنِّي أَثُجُّ ثَجًّا ‏.‏ قَالَ ‏"‏ تَلَجَّمِي وَتَحَيَّضِي فِي كُلِّ شَهْرٍ فِي عِلْمِ اللَّهِ سِتَّةَ أَيَّامٍ أَوْ سَبْعَةَ أَيَّامٍ ثُمَّ اغْتَسِلِي غُسْلاً فَصَلِّي وَصُومِي ثَلاَثَةً وَعِشْرِينَ أَوْ أَرْبَعَةً وَعِشْرِينَ وَأَخِّرِي الظُّهْرَ وَقَدِّمِي الْعَصْرَ وَاغْتَسِلِي لَهُمَا غُسْلاً وَأَخِّرِي الْمَغْرِبَ وَعَجِّلِي الْعِشَاءَ وَاغْتَسِلِي لَهُمَا غُسْلاً وَهَذَا أَحَبُّ الأَمْرَيْنِ إِلَىَّ ‏"‏ ‏.‏