The Prophet ﷺ had informed the people about the death of Zaid, Jaʿfar and Ibn Rawaha before the news of their death reached them. He said with his eyes flowing with tears, "Zaid took the flag and was martyred; then Jaʿfar took the flag and was martyred, and then Ibn Rawaha took the flag and was martyred. Finally the flag was taken by one of Allah's Swords (i.e. Khalid bin Al-Walid) and Allah gave them (i.e. the Muslims) victory."  

أَنَّ النَّبِيَّ ﷺ نَعَى زَيْدًا وَجَعْفَرًا وَابْنَ رَوَاحَةَ لِلنَّاسِ قَبْلَ أَنْ يَأْتِيَهُمْ خَبَرُهُمْ فَقَالَ أَخَذَ الرَّايَةَ زَيْدٌ فَأُصِيبَ ثُمَّ أَخَذَ جَعْفَرٌ فَأُصِيبَ ثُمَّ أَخَذَ ابْنُ رَوَاحَةَ فَأُصِيبَ وَعَيْنَاهُ تَذْرِفَانِ حَتَّى أَخَذَ سَيْفٌ مِنْ سُيُوفِ اللَّهِ حَتَّى فَتَحَ اللَّهُ عَلَيْهِمْ