It is narrated from Sayyiduna Jabir (may Allah be pleased with him) that once two slaves fought with each other, one of whom belonged to a Muhajir and the other to an Ansari. The Muhajir called out to the Muhajirin and the Ansari called out to the Ansar for help. The Prophet (peace and blessings be upon him) came out upon hearing these calls and said: "What are these cries of ignorance?" The people replied: "By Allah! There is nothing like that, but both slaves pushed each other." The Prophet (peace and blessings be upon him) said: "There is no harm in this. A person should help his brother whether he is an oppressor or oppressed. If he is an oppressor, then stop him from oppression, that is his help; and if he is oppressed, then help him."