Sahih al-Bukhari 1246
Sahih al-Bukhari · Book 23: Funerals (Al-Janaa'iz) · A man who informs the relatives of the deceased person (of his death) by himself
Narrated Anas bin Malik:
حَدَّثَنَا أَبُو مَعْمَرٍ ، حَدَّثَنَا عَبْدُ الْوَارِثِ ، حَدَّثَنَا أَيُّوبُ ، عَنْ حُمَيْدِ بْنِ هِلاَلٍ ، عَنْ أَنَسِ بْنِ مَالِكٍ ـ رضى الله عنه ـ قَالَ قَالَ النَّبِيُّ صلى الله عليه وسلم " أَخَذَ الرَّايَةَ زَيْدٌ فَأُصِيبَ، ثُمَّ أَخَذَهَا جَعْفَرٌ فَأُصِيبَ، ثُمَّ أَخَذَهَا عَبْدُ اللَّهِ بْنُ رَوَاحَةَ فَأُصِيبَ ـ وَإِنَّ عَيْنَىْ رَسُولِ اللَّهِ صلى الله عليه وسلم لَتَذْرِفَانِ ـ ثُمَّ أَخَذَهَا خَالِدُ بْنُ الْوَلِيدِ مِنْ غَيْرِ إِمْرَةٍ فَفُتِحَ لَهُ "
The Prophet (ﷺ) said, "Zaid took over the flag and was martyred. Then it was taken by Jafar who was martyred as well. Then `Abdullah bin Rawaha took the flag but he too was martyred and at that time the eyes of Allah's Messenger (ﷺ) were full of tears. Then Khalid bin Al-Walid took the flag without being nominated as a chief (before hand) and was blessed with victory."