Anas (RAA) narrated that the Messenger of Allah (ﷺ) said:
"If one restrained his anger, Allah will keep His punishment from him (on the Day of Resurrection)." Related by At-Tabarani in al-Awsat. (ES)
English reference (ES): Book 16, Hadith 1549 (ES)
Arabic reference (ES): Book 16, Hadith 1506 (ES)