Abu Hurayrah (may Allah be pleased with him) reported that the Prophet (may Allah's peace and blessings be upon him) said: “By the One in whose Hand my soul is, this world will not come to an end until a man passes by a grave, rolls over it and says: I wish I were in the place of the dweller of this grave, not due to religious reasons but due to (worldly) affliction.” Authentic hadith - Narrated by Bukhari & Muslim