Al-Lu'lu Wal-Marjan 1669 — The Book of Kindness, Good Relations and Good Manners

Jabir bin `Abdullah Narrated from:

We were in a Ghazwa (Sufyân once said, in an army-unit) and a man from the emigrants kicked an Ansâri man (on the buttocks with his foot). The Ansâri man said, “O the Ansâr ! (Help!)”, and the emigrant said, “O the emigrants! (Help)”. Allâh’s Messenger ﷺ heard that and said, “What is this call for, which is characteristic of the Period of Ignorance?” They said, “O Allâh’s Messenger! A man from the emigrants kicked one of the Ansâr.” Allâh’s Messenger ﷺ said, “Leave it (that call) as it is a detestable thing.”‘Abdullâh bin Ubai heard that and said, “Have they (the emigrants) done so? By Allâh, when we return to Al-Madîna, surely, the more honourable will expel therefrom the meaner.” When this statement reached the Prophet ﷺ, ‘Umar got up and said, “O Allâh’s Messenger! Let me chop off the head of this hypocrite (‘Abdullâh bin Ubai)! The Prophet ﷺ said, “Leave him, lest the people say that Muhammad (ﷺ) kills his companions.”[The Ansâr were then more in number than the emigrants when the latter came to Al-Madîna, but later on the emigrants increased.] ( Sahîh Al-Bukhârî, Hadîth No. 428, Vol. 6 )