The Book of Funerals
21/72. Chapter:
Forming rows to offer the funeral prayer
Sunan an-Nasai
أَخْبَرَنَا عَلِيُّ بْنُ حُجْرٍ، قَالَ أَنْبَأَنَا إِسْمَاعِيلُ، عَنْ أَيُّوبَ، عَنْ أَبِي الزُّبَيْرِ، عَنْ جَابِرٍ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " إِنَّ أَخَاكُمْ قَدْ مَاتَ فَقُومُوا فَصَلُّوا عَلَيْهِ " . فَصَفَفْنَا عَلَيْهِ صَفَّيْنِ .
It was narrated from Jabir that: the Messenger of Allah said: "Your brother has died, so get up and offer the funeral prayer for him." So we formed two rows for him."
Reference : Sunan an-Nasa'i 1973In-book reference : Book 21, Hadith 156English translation : Vol. 3, Book 21, Hadith 1975