Munkar and Nakeer, in Islamic eschatology, are two black, blue-eyed malaikah (angels) who test the faith of the dead in their graves. After death, a person's soul passes through a stage called barzakh, where it is stored near their grave. (Even if the person's body was destroyed, the soul will still rest in the earth near their place of death.) The Angels prop the deceased soul upright in the grave and ask three questions, "Who is your Lord? What is your way of life? Who is your Prophet?" A righteous Muslim will respond correctly, saying that their Lord is Allah, that their way of life is Islam, and depending on what time period they live in, they will name their prophet (which would currently be Muhammad for those living today). A voice from God will resonate down into the grave, confirming that what the person said was true. He or she will then be shown a window to the place he or she could have had in Hell, but are then shown the place that Allah has given for him or her in Paradise. Then there comes to him some of heaven's breezes and fragrances, and the grave will expand into a comfortable space as far as the eye can see, and his grave will be lit up. The righteous believer will then remain in a state of bliss until the Day of Resurrection.

A non-believer, of course, will not respond correctly, and the angels will rebuke him: "Neither did you know nor did you seek guidance from those who had knowledge(Islam)." They will then show the soul the place he or she could have had in Paradise, and then show that person his or her eternal place in Hell. Then he will be hit with an iron hammer between his ears, and he will cry and that cry will be heard by whatever approaches him except human beings and Jinns. That person's grave is tightened until his chest ribs come over each other like clasped hands, and he or she remains in a state of torture until the Day of Resurrection.