[Machine] Fatimah was experiencing istihaadah, so she would perform ghusl from her regular bleeding and then pray. She consulted Umm Salamah, the wife of the Prophet Muhammad ﷺ, who told her to observe the length of her menstrual cycle and days of istihaadah. During the days of bleeding, Fatimah would leave prayers and perform ghusl for other acts of worship. She would also seek forgiveness and pray. This narration was reported by Hammad ibn Zaid from Ayyub, and Fatimah bint Abi Hubaysh, and Hisham ibn Urwah from his father, from Aisha, regarding the matter of Fatimah bint Abi Hubaysh. The narration of Fatimah bint Abi Hubaysh is more authentic than this, and it indicates that the woman whom Umm Salamah consulted for was someone other than Fatimah, as it is likely that her name was correct in the narration of Umm Salamah if she had two states during her istihaadah. In one state, she could differentiate between the two types of blood, so Umm Salamah advised her to stop prayers when the menstrual bleeding started, and to pray when it ended. In the other state, she couldn't differentiate between the two types of blood, so Umm Salamah instructed her to follow her usual pattern. Other possibilities also exist, and Allah knows best. It was also narrated from Abu Salamah, from Umm Salamah, without mentioning the name.  

أَنَّ فَاطِمَةَ اسْتُحِيضَتْ فَكَانَتْ تَغْتَسِلُ مِنْ مِرْكَنٍ لَهَا فَتَخْرُجُ وَهِيَ غَالِبَةُ الصُّفْرَةِ فَاسْتَفْتَتْ لَهَا أُمُّ سَلَمَةَ رَسُولُ اللهِ ﷺ فَقَالَ لِتَنْظُرْ أَيَّامَ قُرْئِهَا وَأَيَّامَ حَيْضَتِهَا فَتَدَعُ فِيهَا الصَّلَاةَ وَتَغْتَسِلُ فِيمَا سِوَى ذَلِكَ وَتَسْتَدْفِرُ بِثَوْبٍ وَتُصَلِّي وَرَوَاهُ حَمَّادُ بْنُ زَيْدٍ عَنْ أَيُّوبَ وَقَالَ فَاطِمَةُ بِنْتُ أَبِي حُبَيْشٍ وَحَدِيثُ هِشَامِ بْنِ عُرْوَةَ عَنْ أَبِيهِ عَنْ عَائِشَةَ فِي شَأْنِ فَاطِمَةَ بِنْتِ أَبِي حُبَيْشٍ أَصَحُّ مِنْ هَذَا وَفِيهِ دَلَالَةٌ عَلَى أَنَّ الْمَرْأَةَ الَّتِي اسْتَفْتَتْ لَهَا أُمُّ سَلَمَةَ غَيْرُهَا وَيُحْتَمَلُ إِنْ كَانَتْ تَسْمِيَتُهَا صَحِيحَةً فِي حَدِيثِ أُمِّ سَلَمَةَ إِنْ كَانَتْ لَهَا حَالَتَانِ فِي مُدَّةِ اسْتِحَاضَتِهَا حَالَةٌ تُمَيِّزُ فِيهَا بَيْنَ الدَّمَيْنِ فَأَفْتَاهَا بِتَرْكِ الصَّلَاةِ عِنْدَ إِقْبَالِ الْحَيْضِ وَبِالصَّلَاةِ عِنْدَ إِدْبَارِهِ وَحَالَةٌ لَا تُمَيِّزُ فِيهَا بَيْنَ الدَّمَيْنِ فَأَمَرَهَا بِالرُّجُوعِ إِلَى الْعَادَةَ وَيُحْتَمَلُ غَيْرُ ذَلِكَ وَاللهُ أَعْلَمُ وَرُوِيَ عَنْ أَبِي سَلَمَةَ عَنْ أُمِّ سَلَمَةَ دُونَ التَّسْمِيَةِ