The Prophet ﷺ cauterized the wound of Saad bin Muaz from the arrow that struck him.
حدثنا موسى بن إسمعيل حدثنا حماد عن أبي الزبير
أن النبي ﷺ كوى سعد بن معاذ من رميته
Muslim narrated it in the Book of Greetings, chapter "Every disease has a cure and the recommendation of seeking treatment," hadith no. 2208, from the hadith of Abu Zubayr, and Ahmad narrated it 3/363, from the hadith of Hammad bin Salama with the same wording.