وَحَدَّثَنِي عَنْ مَالِكٍ، عَنِ ابْنِ شِهَابٍ، عَنْ سَعِيدِ بْنِ الْمُسَيَّبِ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ ‏"‏ لَيْسَ الشَّدِيدُ بِالصُّرَعَةِ إِنَّمَا الشَّدِيدُ الَّذِي يَمْلِكُ نَفْسَهُ عِنْدَ الْغَضَبِ ‏"‏ ‏.‏

Yahya related to me from Malik from Ibn Shihab from Said ibn al-Musayyab from Abu Hurayra that the Messenger of Allah, may Allah blesshim and grant him peace, said, "A strong person is not the person whothrows his adversaries to the ground. A strong person is the personwho contains himself when he is angry." Translation Not Available

Book Ref: Muwatta Imam Malik Book 47 Hadith 1647
Web Ref:  Muwatta Imam Malik Book 47 Hadith 12