A woman came to the Messenger of Allah ﷺ and said: What should one do if the blood of menses smears the garment of one amongst us? He (the Holy Prophet) replied: She should scrape it, then rub it with water, then pour water over it and then offer prayer in it. (Using translation from Muslim 291a)   

جَاءَتِ امْرَأَةٌ إِلَى النَّبِيِّ ﷺ فَقَالَتْ إِحْدَانَا يُصِيبُ ثَوْبَهَا مِنْ دَمِ الْحَيْضَةِ فَكَيْفَ تَصْنَعُ بِهِ؟ قَالَ تَحُتُّهُ ثُمَّ تَقْرُصُهُ بِالْمَاءِ ثُمَّ تَنْضَحُهُ ثُمَّ تُصَلِّي فِيهِ  

Fatimah daughter of Abu Hubaish came to the Messenger of Allah ﷺ and said: I am a woman who has prolonged flow of blood; I am never purified ; should I abandon prayer ? He replied: This is (due to) a vein, and not menstruation. When the menstruation begins, you should abandon prayer ; when it is finished, you should wash away the blood and pray. (Using translation from Abū Dāʾūd 282)   

جَاءَتْ فَاطِمَةُ بِنْتُ أَبِي حُبَيْشٍ إِلَى رَسُولِ اللهِ ﷺ فَقَالَتْ إِنِّي مُسْتَحَاضَةٌ فَلَا أَطْهُرُ أَفَأَدَعُ الصَّلَاةَ؟ قَالَ لَا إِنَّمَا ذَلِكَ عِرْقٌ وَلَيْسَ بِالْحَيْضِ فَإِذَا أَقْبَلَتِ الْحَيْضَةُ فَدَعِي الصَّلَاةَ وَإِذَا أَدْبَرَتْ فَاغْسِلِي عَنْكِ الدَّمَ وَصَلِّي أَخْرَجَاهُ مِنْ حَدِيثِ هِشَامِ بْنِ عُرْوَةَ فِي الصَّحِيحِ  

[Machine] The egg shattered on the head of the Messenger of Allah, and his ring was broken, and his face was wounded. Abu Hazim said, "Fatimah, the daughter of the Messenger of Allah, used to wash the blood from him, and Ali ibn Abi Talib would bring her water in a basin. When the water touched the wound, his blood increased, so she took a piece of straw and burned it until it became ashes, then she placed it on the wound, and the bleeding stopped."  

هُشِّمَتِ الْبَيْضَةُ عَلَى رَأْسِ رَسُولِ اللهِ وَكُسِرَتْ رَبَاعِيَتُهُ وَجُرِحَ وَجْهُهُ قَالَ أَبُو حَازِمٍ وَكَانَتْ فَاطِمَةُ بِنْتُ رَسُولِ اللهِ ﷺ تَغْسِلُ عَنْهُ الدَّمَ وَعَلِيُّ بْنُ أَبِي طَالِبٍ ؓ يَأْتِيهَا بِالْمَاءِ فِي مِجَنَّةٍ فَلَمَّا أَصَابَ الْجُرْحَ الْمَاءُ كَثُرَ دَمُهُ فَلَمْ يَرْقَأِ الدَّمُ حَتَّى أَخَذَتْ قِطْعَةَ حَصِيرٍ وَأَحْرَقَتْهُ حَتَّى صَارَ رَمَادًا ثُمَّ جَعَلَتْهُ عَلَى الْجُرْحِ فَرَقَأَ الدَّمُ