Sahih al-Bukhari 463
صحيح البخاري#463SahihNarrated `Aisha:On the day of Al-Khandaq (battle of the Trench) the medial arm vein of Sa`d bin Mu`ad [??] was injured and the Prophet (ﷺ) pitched a tent in the mosque to look after him. There was another tent for Banu Ghaffar in the mosque and the blood started flowing from Sa`d's tent to the tent of Bani Ghaffar. They shouted, "O occupants of the tent! What is coming from you to us?" They found that Sa`d's wound was bleeding profusely and Sa`d died in his tent
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 8:111