Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
ibnmajah:622Muḥammad b. Yaḥyá

"I used to bleed continuously and heavily. I went to the Prophet asking him for advice and telling him (about my situation). I found him with my sister Zainab and said: 'o Messenger of Allah! I need to ask you something.' He said: 'What is it?' I said: 'I bleed continuously and heavily, and that is keeping me from prayer and fasting. What do you command me to do about it?' He said: 'I advise you to use a piece of cotton, for that will take away the blood.' I said: 'It is more than that.'" And he mentioned something like the Hadith of Sharik (below).  

ابن ماجة:٦٢٢حَدَّثَنَا مُحَمَّدُ بْنُ يَحْيَى

حَدَّثَنَا عَبْدُ الرَّزَّاقِ إِمْلاَءً عَلَىَّ مِنْ كِتَابِهِ وَكَانَ السَّائِلُ غَيْرِي أَنْبَأَنَا ابْنُ جُرَيْجٍ عَنْ عَبْدِ اللَّهِ بْنِ مُحَمَّدِ بْنِ عَقِيلٍ عَنْ إِبْرَاهِيمَ بْنِ مُحَمَّدِ بْنِ طَلْحَةَ عَنْ عُمَرَ بْنِ طَلْحَةَ عَنْ أُمِّ حَبِيبَةَ بِنْتِ جَحْشٍ قَالَتْ كُنْتُ أُسْتَحَاضُ حَيْضَةً كَثِيرَةً طَوِيلَةً قَالَتْ فَجِئْتُ إِلَى النَّبِيِّ ﷺ أَسْتَفْتِيهِ وَأُخْبِرُهُ قَالَتْ فَوَجَدْتُهُ عِنْدَ أُخْتِي زَيْنَبَ قَالَتْ قُلْتُ يَا رَسُولَ اللَّهِ إِنَّ لِي إِلَيْكَ حَاجَةً قَالَ وَمَا هِيَ أَىْ هَنْتَاهْ قُلْتُ إِنِّي أُسْتَحَاضُ حَيْضَةً طَوِيلَةً كَبِيرَةً وَقَدْ مَنَعَتْنِي الصَّلاَةَ وَالصَّوْمَ فَمَا تَأْمُرُنِي فِيهَا قَالَ أَنْعَتُ لَكِ الْكُرْسُفَ فَإِنَّهُ يُذْهِبُ الدَّمَ قُلْتُ هُوَ أَكْثَرُ فَذَكَرَ نَحْوَ حَدِيثِ شَرِيكٍ