The Consequences of Anger

Imam Ja’far al-Sadiq (peace be upon him) said:
مَنْ لَمْ یَمْلِکْ غَضَبَهُ لَمْ یَملِکْ عَقْلَهُ
“Whoever does not control his anger does not possess his intellect. ”
Al-Kāfi, Volume 2, Page 303