It is He who doth take your souls by night, and hath knowledge of all that ye have done by day; by day doth He raise you up again; that a term appointed be fulfilled; in the end unto Him will be your return; then will He show you the truth of all that ye did.[Qur'an 6:60]

Abu Huraira(RA) reported Allah's Messenger (PBUH) as saying: "The world is a prison-house for a believer and Paradise for a non-believer."