Dua For Controlling Anger

أَعُوذُ بِاللَّهِ مِنَ الشَّيْطانِ الرَّجِيْمِ

I seek refuge with Allah against the Satan, the outcast.

Pronunciation: A'oothu billaahi minash-Shaytaanir-rajeem

Reference: Abu Dawud: 4781 Al-Bukhari: 6115