Anas bin Malik reported,

The Prophet ﷺ addressed the people and said, "Zayd took the banner and was struck down. Then Jafar took it and was struck down. Then Abdullah bin Rawaha took it and was struck down. Then Khalid bin Walid took it without having been appointed, and victory was granted through him."He then said, "It would not please us that they were here with us."Ayub said, or perhaps he said, "It would not please them that they were here with us," while his eyes were overflowing with tears.

Bukhari 2798

Sahih

حدثنا يوسف بن يعقوب الصفار حدثنا إسماعيل بن علية عن أيوب عن حميد بن هلال

عن أنس بن مالك رضي الله عنه قال

خطب النبي ﷺ فقال أخذ الراية زيد فأصيب ثم أخذها جعفر فأصيب ثم أخذها عبد الله بن رواحة فأصيب ثم أخذها خالد بن الوليد عن غير إمرة ففتح له وقال ما يسرنا أنهم عندنا قال أيوب أو قال ما يسرهم أنهم عندنا وعيناه تذرفان

البخاري 2798صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Bukhari
Book
Jihad and expeditions
Chapter
Wishing for martyrdom
Numbering
Darussalam 2798
Bukhari 2798