(71) باب فِي تَعْمِيقِ الْقَبْرِ
Narrated Hisham ibn Amir:
The Ansar came to the Messenger of Allah (ﷺ) on the day of Uhud and said: We have been afflicted with wound and fatigue. What do you command us? He said: Dig graves, make them wide, bury two or three in a single grave. He was asked: Which of them should be put first? He replied: The one who knew the Qur'an most. He (Hisham) said: My father Amir died on the day and was buried with two or one.
Reference: Sunan Abi Dawud 3215
In-book reference: Book 21, Hadith 127
English translation: Book 20, Hadith 3209