Sahl bin Saad reported,

The people asked him, with no one between him and me, what was used to treat the Prophet's ﷺ wound. He replied, "No one alive knows more about it than I do. Ali kept bringing his shield filled with water, and Fatimah was washing the blood from his face. Then a piece of mat was taken and burned, and his wound was packed with its ashes."

Bukhari 243

Sahih

حدثنا محمد يعني ابن سلام قال أخبرنا سفيان بن عيينة عن أبي حازم سمع

سهل بن سعد الساعدي

وسأله الناس وما بيني وبينه أحد بأي شيء دووي جرح النبي ﷺ فقال ما بقي أحد أعلم به مني كان علي يجيء بترسه فيه ماء وفاطمة تغسل عن وجهه الدم فأخذ حصير فأحرق فحشي به جرحه

البخاري 243صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Bukhari
Book
Wudu
Chapter
Washing blood from her father's face by a woman
Numbering
Darussalam 243
Bukhari 243