True strength

The strong one controls himself when angry.

Narrated by Abu Hurairah

The strong person is not the one who overpowers others; the strong person is the one who controls himself when angry.

Sahih al-Bukhari 6114, Sahih Muslim 2609

What this hadith teaches

Real strength is self-control.

Reference and grade

Grade
Sahih: agreed upon by al-Bukhari and Muslim
Narrator
Abu Hurairah

The hadith in Arabic نص الحديث

لَيْسَ الشَّدِيدُ بِالصُّرَعَةِ، إِنَّمَا الشَّدِيدُ الَّذِي يَمْلِكُ نَفْسَهُ عِنْدَ الْغَضَبِ

Arabic text of Sahih al-Bukhari 6114, as given on sunnah.com.