(90) باب دَفْنِ الْجَمَاعَةِ فِي الْقَبْرِ الْوَاحِدِ
It was narrated from Hisham bin 'Amir that the Messenger of Allah said:
"Dig graves and dig them well, and bury two or three (together), and put in first the one who knew the Qur'an most."
Reference: Sunan an-Nasa'i 2017
In-book reference: Book 21, Hadith 201
English translation: Vol. 3, Book 21, Hadith 2019