the Messenger of Allah ﷺ said, "The strong is not the one who overcomes the people by his strength, but the strong is the one who controls himself while in anger."  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ: «لَيْسَ الشَّدِيدُ بِالصُّرَعَةِ إِنَّمَا الشَّدِيدُ الَّذِي يَمْلِكُ نَفْسَهُ عِنْدَ الْغَضَبِ۔»