حَدَّثَنَا هِشَامُ بْنُ عَمَّارٍ، وَمُحَمَّدُ بْنُ الصَّبَّاحِ، قَالاَ حَدَّثَنَا عَبْدُ الْعَزِيزِ بْنُ أَبِي حَازِمٍ، عَنْ أَبِيهِ، عَنْ سَهْلِ بْنِ سَعْدٍ السَّاعِدِيِّ، قَالَ جُرِحَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ يَوْمَ أُحُدٍ وَكُسِرَتْ رَبَاعِيَتُهُ وَهُشِمَتِ الْبَيْضَةُ عَلَى رَأْسِهِ فَكَانَتْ فَاطِمَةُ تَغْسِلُ الدَّمَ عَنْهُ وَعَلِيٌّ يَسْكُبُ عَلَيْهِ الْمَاءَ بِالْمِجَنِّ فَلَمَّا رَأَتْ فَاطِمَةُ أَنَّ الْمَاءَ لاَ يَزِيدُ الدَّمَ إِلاَّ كَثْرَةً أَخَذَتْ قِطْعَةَ حَصِيرٍ فَأَحْرَقَتْهَا حَتَّى إِذَا صَارَ رَمَادًا أَلْزَمَتْهُ الْجُرْحَ فَاسْتَمْسَكَ الدَّمُ ‏.‏

It wasnarrated that Sahl bin Sa’d As-Sa’idi said: “The Messenger ofAllah (PBUH) was wounded on the Day of Uhud. His molar was broken andhis helmet was crushed on his head. Fatimah was washing the bloodfromhim and ‘Ali was pouring water on him from a shield. WhenFatimahrealized that the water was only making the bleeding worse,she took apiece of a mat and burnt it, and when it had turned toashes, sheapplied it to the wound to stop the bleeding. Translation Not Available

Book Ref: Sunan Ibn Majah Book 31 Hadith 3464
Web Ref:  Sunan Ibn Majah Vol 4 Book 31 Hadith 3464