Ṣaḥīḥ al-Bukhārī Ḥadīth [6114] – Strong is the one who controls himself in anger

حَدَّثَنَا عَبْدُ اللهِ بْنُ يُوسُفَ: أَخْبَرَنَا مَالِكٌ، عَنِ ابْنِ شِهَابٍ، عَنْ سَعِيدِ بْنِ الْمُسَيَّبِ، عَنْ أَبِي هُرَيْرَةَ ‌رَضِيَ ‌اللَّهُ ‌عَنْهُ أَنَّ رَسُولَ اللهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: لَيْسَ الشَّدِيدُ بِالصُّرَعَةِ، إِنَّمَا الشَّدِيدُ الَّذِي يَمْلِكُ نَفْسَهُ عِنْدَ الْغَضَبِ

Book [78]: The book of manners
Chapter [76]: To be cautious from being angry

Ḥadīth [6114]: It is narrated on the authority of Abū Hurayrah (may Allāh be pleased with him) that the Messenger of Allāh (peace and blessings of Allāh be upon him) 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.”