The Praiseworthiness of Anger for the Sake of Allah

Prophet Moses (AS) [addressed Allah] saying, ‘O Lord, who are your special people whom You will shade with the shade of Your Throne on the day when no shade will avail except Your Shade? So Allah revealed to him, ‘… and those who are angered when the things that I have prohibited are deemed lawful [by people], the way a leopard is angered when it is wounded!

Imam Ali (AS) said, ‘He (SAWA) [i.e. the Prophet] never used to get angry over worldly matters, but when he did get angry for the sake of the truth, he was unrecognisable and nothing could restrain his anger until he had triumphed in his case [for the truth].

Imam Ali (AS) said, ‘He who displays his ill-feeling towards the immoral people and gets angry for the sake of Allah, Allah will get angry for his sake and will render him well-pleased on the Day of Resurrection.