Sahih Muslim, 4642

It has been narrated on the authority of Abd-ul-'Aziz b. Abu Hazim, who learnt from his father (Abu Hazim). The latter heard it from Sahl b. Sa'd who was asked about the injury which the Messenger of Allah (ﷺ) got on the day of the Battle of Uhud. He said:The face of the Messenger of Allah (ﷺ) was injured, his front teeth were damaged and his helmet was crushed. Fatima, the daughter of the Messenger of Allah (ﷺ), was washing the blood (from his head), and 'Ali b. Abu Talib was pouring water on it from a shield. When Fatima saw that the bleeding had increased on account of (pouring) water (on the wound), she took a piece of mat and burnt it until it was reduced to ashes. She put the ashes on the wound and the bleeding stopped

Rapporté par Abd-ul-‘Aziz b. Abu Hazim, d’après son père (Abu Hazim), qui l’a entendu de Sahl b. Sa’d رضي الله عنه : On a demandé à Sahl au sujet de la blessure que le Messager d’Allah ﷺ a reçue le jour de la bataille d’Uhud. Il a répondu : Le visage du Messager d’Allah ﷺ a été blessé, ses dents de devant ont été cassées et son casque a été brisé. Fatima, la fille du Messager d’Allah ﷺ, lavait le sang de sa tête, et ‘Ali b. Abu Talib versait de l’eau dessus avec un bouclier. Quand Fatima a vu que le sang coulait encore plus à cause de l’eau, elle a pris un morceau de natte, l’a brûlé jusqu’à ce qu’il devienne de la cendre, puis a mis la cendre sur la blessure, et le sang s’est arrêté