It was narrated from Sahl bin Mu’adh bin Anas, from his father, that the Messenger of Allah ﷺ said:
“Whoever restrains his anger when he is able to implement it, Allah will call him before all of creation on the Day of Resurrection, and will give him his choice of any houri that he wants.”

حَدَّثَنَا حَرْمَلَةُ بْنُ يَحْيَى، حَدَّثَنَا عَبْدُ اللَّهِ بْنُ وَهْبٍ، حَدَّثَنِي سَعِيدُ بْنُ أَبِي أَيُّوبَ، عَنْ أَبِي مَرْحُومٍ، عَنْ سَهْلِ بْنِ مُعَاذِ بْنِ أَنَسٍ، عَنْ أَبِيهِ، أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ " مَنْ كَظَمَ غَيْظًا وَهُوَ قَادِرٌ عَلَى أَنْ يُنْفِذَهُ دَعَاهُ اللَّهُ عَلَى رُءُوسِ الْخَلاَئِقِ يَوْمَ الْقِيَامَةِ حَتَّى يُخَيِّرَهُ فِي أَىِّ الْحُورِ شَاءَ " .