She went to the Messenger of Allah and complained to him about bleeding. The Messenger of Allah said: "Rather that is a vein, so look and see when your period comes, then do not perform the prayer. When the period is over, then purify yourself and perform the prayer between one period to the next."  

أَنَّهَا أَتَتْ رَسُولَ اللَّهِ ﷺ فَشَكَتْ إِلَيْهِ الدَّمَ فَقَالَ رَسُولُ اللَّهِ ﷺ إِنَّمَا ذَلِكَ عِرْقٌ فَانْظُرِي إِذَا أَتَى قَرْؤُكِ فَلاَ تُصَلِّي فَإِذَا مَرَّ الْقَرْءُ فَتَطَهَّرِي ثُمَّ صَلِّي مَا بَيْنَ الْقَرْءِ إِلَى الْقَرْءِ  

"Fatimah bint Abi Hubaish came to the Messenger of Allah and said: 'O Messenger of Allah! I am a woman who bleeds continuously and never becomes pure, should I give up the prayer?' He said: 'No, rather that is a vein and it is not menstruation. When the time of your period comes, leave off the prayer, and when it is over, take a bath and wash the blood from yourself and perform the prayer." This is the Hadith of Waki'.  

جَاءَتْ فَاطِمَةُ بِنْتُ أَبِي حُبَيْشٍ إِلَى رَسُولِ اللَّهِ ﷺ فَقَالَتْ يَا رَسُولَ اللَّهِ إِنِّي امْرَأَةٌ أُسْتَحَاضُ فَلاَ أَطْهُرُ أَفَأَدَعُ الصَّلاَةَ قَالَ لاَ إِنَّمَا ذَلِكَ عِرْقٌ وَلَيْسَ بِالْحَيْضَةِ فَإِذَا أَقْبَلَتِ الْحَيْضَةُ فَدَعِي الصَّلاَةَ وَإِذَا أَدْبَرَتْ فَاغْسِلِي عَنْكِ الدَّمَ وَصَلِّي هَذَا حَدِيثُ وَكِيعٍ  

"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).  

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  

"A woman asked the Prophet: 'I bleed continuously and I do not become pure. Should I give up the prayer?' He said: 'No, but leave off praying for the number of days and nights that used to menstruate.'" (One of the narrators) Abu Bakr (Ibn Abu Shaibah) said in this Hadith: "Estimate the number of days in the month, then take a bath and cover your private part with a cloth and perform prayer."  

سَأَلَتِ امْرَأَةٌ النَّبِيَّ ﷺ قَالَتْ إِنِّي أُسْتَحَاضُ فَلاَ أَطْهُرُ أَفَأَدَعُ الصَّلاَةَ قَالَ لاَ وَلَكِنْ دَعِي قَدْرَ الأَيَّامِ وَاللَّيَالِي الَّتِي كُنْتِ تَحِيضِينَ قَالَ أَبُو بَكْرٍ فِي حَدِيثِهِ وَقَدْرَهُنَّ مِنَ الشَّهْرِ ثُمَّ اغْتَسِلِي وَاسْتَثْفِرِي بِثَوْبٍ وَصَلِّي  

"Fatimah bint Abi Hubaish came to the Prophet: 'O Messenger of Allah! I am a woman who bleeds continuously and never becomes pure. Should I give up prayer?' he said: 'No, that is just a vein and is not menstruation. Do not perform prayer during the days of your period, then take a bath, and perform ablution for each prayer, even if drops of blood fall on the mat.'"  

جَاءَتْ فَاطِمَةُ بِنْتُ أَبِي حُبَيْشٍ إِلَى النَّبِيِّ ﷺ فَقَالَتْ يَا رَسُولَ اللَّهِ إِنِّي امْرَأَةٌ أُسْتَحَاضُ فَلاَ أَطْهُرُ أَفَأَدَعُ الصَّلاَةَ قَالَ لاَ إِنَّمَا ذَلِكَ عِرْقٌ وَلَيْسَ بِالْحَيْضَةِ اجْتَنِبِي الصَّلاَةَ أَيَّامَ مَحِيضِكِ ثُمَّ اغْتَسِلِي وَتَوَضَّئِي لِكُلِّ صَلاَةٍ وَإِنْ قَطَرَ الدَّمُ عَلَى الْحَصِيرِ  

The Prophet said: "The woman who experiences irregular non-menstrual bleeding should leave prayer during the days of her period, then she should take a bath, and perform ablution for each prayer, and she should fast and perform the prayer."  

عَنِ النَّبِيِّ ﷺ قَالَ الْمُسْتَحَاضَةُ تَدَعُ الصَّلاَةَ أَيَّامَ أَقْرَائِهَا ثُمَّ تَغْتَسِلُ وَتَتَوَضَّأُ لِكُلِّ صَلاَةٍ وَتَصُومُ وَتُصَلِّي