Ja’far on Rage: Anger is the key to every evil deed

Al-Ghazali reported: Ja’far ibn Muhammad, may Allah be pleased with them both, said, “Anger is the key to every evil.”

Source: Iḥyā’ Ulūm al-Dīn 3/166

عن الغزالي وَقَالَ جَعْفَرُ بْنُ مُحَمَّدٍ رَضِيَ اللَّهُ عَنْهُمَا الْغَضَبُ مِفْتَاحُ كُلِّ شَرٍّ

3/166 إحياء علوم الدين