People asked Sahl bin Saad al-Saidi what was used to treat the wound of the Prophet ﷺ. He replied, "No one alive knows more about it than I do. Ali used to bring water in his shield, and Fatimah would wash the blood from his face. Then a piece of mat was taken and burned, and its ashes were packed into the wound of the Messenger of Allah ﷺ."
حدثنا علي بن عبد الله حدثنا سفيان حدثنا
سألوا سهل بن سعد الساعدي رضي الله عنه بأي شيء دووي جرح النبي ﷺ فقال ما بقي من الناس أحد أعلم به مني كان علي يجيء بالماء في ترسه وكانت يعني فاطمة تغسل الدم عن وجهه وأخذ حصير فأحرق ثم حشي به جرح رسول الله ﷺ