(4) باب الرَّجُلِ يَنْعَى إِلَى أَهْلِ الْمَيِّتِ بِنَفْسِهِ
Narrated Anas bin Malik:
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."
Reference: Sahih al-Bukhari 1246
In-book reference: Book 23, Hadith 10
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 2, Book 23, Hadith 338