The Messenger of Allah ﷺ said, "Whoever restrains his anger when he is able to act upon it, Allah will call him before all of creation on the Day of Resurrection and let him choose from the maidens of Paradise whomever he wishes."
حدثنا ابن السرح حدثنا ابن وهب عن سعيد يعني ابن أبي أيوب عن أبي مرحوم
أن رسول الله ﷺ قال من كظم غيظا وهو قادر على أن ينفذه دعاه الله عز وجل على رءوس الخلائق يوم القيامة حتى يخيره الله من الحور العين ما شاء
[Its isnad is hasan]. Ibn Majah reported it in "Zuhd," chapter "Forbearance," 4186, from the hadith of Abdullah bin Wahb. Tirmidhi reported it, 2021, from the hadith of Saeed bin Abu Ayub, through the same chain, and said, "Hasan gharib."