(72) باب غَسْلِ الْمَرْأَةِ أَبَاهَا الدَّمَ عَنْ وَجْهِهِ
Narrated Abu Hazim:
Sahl bin Sa`d As-Sa`idi, was asked by the people, "With what was the wound of the Prophet (ﷺ) treated? Sahl replied, "None remains among the people living who knows that better than I. `Ali [??] used to bring water in his shield and Fatima used to wash the blood off his face. Then straw mat was burnt and the wound was filled with it."
Reference: Sahih al-Bukhari 243
In-book reference: Book 4, Hadith 110
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 1, Book 4, Hadith 244