It is narrated from Hazrat Khalid bin Walid (may Allah be pleased with him) that once there was a dispute between me and Ammar bin Yasir over something. Hazrat Ammar (may Allah be pleased with him) went to complain to the Prophet (peace and blessings of Allah be upon him). The Prophet (peace and blessings of Allah be upon him) said: Whoever shows enmity towards Ammar, Allah shows enmity towards him; and whoever hates Ammar, Allah also hates him; and whoever abuses him, he abuses Allah.