At-Tahrim · 66:6

6. O those who have faith in Allah and act according to what He has legislated for them! Put up a barrier for yourselves and your families against a huge fire which is stoked with people and stones. Appointed over this fire are tough angels who are harsh to whoever enters it. They do not disobey the command of Allah when He commands them, and they do whatever He commands them to do without hesitation or showing weakness.