Musannaf Ibn Abi Shaybah 27025 — Reports on anger and what a man says

Sayyiduna Abu Sa'id al-Khudri (may Allah be pleased with him) said: I heard the Messenger of Allah (peace and blessings be upon him) saying: "Beware of anger. Indeed, it is an ember that smoulders in the heart of the son of Adam. Do you not see the swollen veins and the red eyes of the angry person? So whoever feels even a little anger should lie down on the ground."