Al-Adab Al-Mufrad #155
Children's Death
The Arabic includes the chain of narration (sanad) and the collector's commentary; the English translation shows the Prophet's words only.
قَالَ: وَقَالَ رَسُولُ اللهِ صلى الله عليه وسلم: مَا تَعُدُّونَ فِيكُمُ الصُّرَعَةَ؟ قَالُوا: هُوَ الَّذِي لاَ تَصْرَعُهُ الرِّجَالُ، فَقَالَ: لاَ، وَلَكِنَّ الصُّرَعَةَ الَّذِي يَمْلِكُ نَفْسَهُ عِنْدَ الْغَضَبِ.
He reported that the Messenger of Allah, may Allah bless him and grant
him peace, said, "Who do you reckon to be the one who most often throws people
down (in a fight)?" They replied, "The one whom men do not throw down." He
said, "No the one who throws people down is the person who controls himself
when he is angry."
About Al-Adab Al-Mufrad
This hadith is #155 from Al-Adab Al-Mufrad, in the Book of Children's Death.