Sunan Abi Dawud 3138
سنن أبي داود#3138SahihNarrated Jabir b. 'Abd Allah :The Messenger of Allah (ﷺ) combined two persons from among the martyrs of Uhud (in one garment), and said: Which of the two has learnt the Qur'an more ? When one of them was pointed to him, he advanced him in the grave, saying: I shall be witness to all these (martyrs) on the Day of Judgement. He then ordered them to be buried without being washed
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Shuaib Al ArnautSahih
Zubair Ali ZaiSahih Bukhari (1343)
In-book reference: 21:50