"This umma (community) will be questioned in the grave. When the dead person is buried and his friends leave him, an angel holding a mace will come, will make him sit and ask; "What do you say about this man (the Messenger of Allah)? If the dead person is a believer, he will say, "I witness that there is no god but Allah and that Muhammad (pbuh) is His slave and Messenger. The angel will say; "You told the truth." (Ahmad Ibn Hanbal, Musnad, III, 3, 40).