The Book of Funerals
21/87. Chapter:
It Is Recommended To Make The Grave Wide
Sunan an-Nasai
أَخْبَرَنَا مُحَمَّدُ بْنُ مَعْمَرٍ، قَالَ حَدَّثَنَا وَهْبُ بْنُ جَرِيرٍ، قَالَ حَدَّثَنَا أَبِي قَالَ، سَمِعْتُ حُمَيْدَ بْنَ هِلاَلٍ، عَنْ سَعْدِ بْنِ هِشَامِ بْنِ عَامِرٍ، عَنْ أَبِيهِ، قَالَ : لَمَّا كَانَ يَوْمُ أُحُدٍ أُصِيبَ مِنَ الْمُسْلِمِينَ، وَأَصَابَ النَّاسَ جِرَاحَاتٌ فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم : " احْفِرُوا وَأَوْسِعُوا، وَادْفِنُوا الاِثْنَيْنِ وَالثَّلاَثَةَ فِي الْقَبْرِ، وَقَدِّمُوا أَكْثَرَهُمْ قُرْآنًا " .
It was narrated from Sa'eed bin Hisham bin 'Amir that his father said: "On the day of Uhud some of the people among the Muslims were killed, and people were wounded. The Messenger of Allah said: 'Dig graves and make them wide, and bury two or three in a grave, and put the one who knew more Qur'an in first."'
Reference : Sunan an-Nasa'i 2011In-book reference : Book 21, Hadith 194English translation : Vol. 3, Book 21, Hadith 2013