It is narrated from Sayyiduna Abdullah bin Amr (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) mentioned the angels who test people in the grave. Umar bin al-Khattab (may Allah be pleased with him) said: O Messenger of Allah, will our minds be returned to us at that time? The Messenger of Allah (peace and blessings be upon him) said: "Yes, just as you are today." At this Umar (may Allah be pleased with him) said: May a stone be in his mouth!
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 13703