Mishkat al-Masabih #4324
Medicine and Spells
The Arabic includes the chain of narration (sanad) and the collector's commentary; the English translation shows the Prophet's words only.
وَعَنْهُ قَالَ: رُمِيَ سَعْدُ بْنُ مُعَاذٍ فِي أكحله فحمسه النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ بِيَدِهِ بِمِشْقَصٍ ثمَّ ورمت فحمسه الثَّانِيَة. رَوَاهُ مُسلم
He told that when Sa'id b. Mu'adh was shot in the median vein of his arm the Prophet with his own hand cauterized it with a broad arrow head. Afterwards it swelled up and he cauterized it a second time.
Muslim transmitted it.
About Mishkat al-Masabih
This hadith is #4324 from Mishkat al-Masabih, in the Book of Medicine and Spells.