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." (Using translation from Nasāʾī 1973)
أَنَّ رَسُولَ اللهِ ﷺ قَالَ «إِنَّ أَخًا لَكُمْ قَدْ مَاتَ فَقُومُوا فَصَلُّوا عَلَيْهِ فَصَفَفْنَا عَلَيْهِ صَفَّيْنِ»