(30) باب فَضْلِ مَنْ يَمْلِكُ نَفْسَهُ عِنْدَ الْغَضَبِ وَبِأَىِّ شَىْءٍ يَذْهَبُ الْغَضَبُ
Abdullah b. Mas'ud reported Allah's Messenger (ﷺ) as saying:
Whom do you count as" Raqub" amongst you? They (his Companions) said: One who has no children (the children are born unto him but they do not survive). Thereupon he (the Holy Prophet) said: He is not a Raqub but Raqub is one who does not find his child as the forerunner (in Paradise). He then said: Whom do you count as a wrestler amongst you? We said: He who wrestles with persons. He said: No, it is not he but one who controls himself when in a fit of rage.
Reference: Sahih Muslim 2608 a
In-book reference: Book 45, Hadith 138
USC-MSA web (English) reference(deprecated numbering scheme): Book 32, Hadith 6311