Jabir bin 'Abdullah reported that a person from the emigrants struck the back of an Ansari. He came to Allah's Apostle (ﷺ) and asked for compensation. Thereupon Allah's Apostle (ﷺ) said: Leave it. for it is something disgusting. Ibn Mansur said that in the narration transmitted on the authority of Amr (these words are also found):" I heard Jabir."