An angel who questions the dead (who asks the dead person who his God is, about the Holy Koran, and about the way to Allah). The purpose of the questioning is to determine if the person has been doing his religious obligations (ammal ibarat) while he was on earth. If the dead person can't answer any of the questions the angel will strike him with a red hot iron bar and if he can't bear the punishment then he will return to the earth as a ghost (tubangkit).
When a person dies, he will be questioned by the angel who questions the dead. That's why he should have his excuses ready.