Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) reports this saying of the Prophet (peace and blessings be upon him): "The world is a prison for the believer and a paradise for the disbeliever."
Al-Bazzar recorded it with two chains, one of which is da'if (weak), while the other contains a group of narrators whom I do not know.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الزهد / 18080