Sunan Ibn Majah
4189
Sahih+2

It was narrated from Ibn ‘Umar that the Messenger of Allah (ﷺ) said:“There is no gulp that brings greater reward with Allah than a gulp of anger that a man swallows (suppresses), seeking thereby the Face of Allah.”

SahihAl-Albani
SahihMuhammad Fouad Abd al-Baqi