It has been narrated by Hammam bin Munabbih who said: This is what has been related to us by Abu Hurairah (RA) from the Messenger of Allah (ﷺ) . (With this introduction) he narrated a number of traditions. One of these was that the Messenger of Allah (ﷺ) said: Great is the wrath of Allah upon a people who have done this to the Messenger of Allah (ﷺ) , and he was at that time pointing to his front teeth. The Messenger of Allah (ﷺ) also said: Great is the wrath of Allah upon a person who has been killed by the Messenger of Allah (ﷺ) in the way of Allah, the Exalted and Glorious.
Hadith Referenceصحيح مسلم / كتاب الجهاد والسير / 1793