Sayyiduna Anas (may Allah be pleased with him) reports that the Prophet (peace and blessings be upon him) said: "On the Day of Resurrection the unjust ruler will be brought, and his subjects will dispute with him, and they will be declared successful against him. Then that ruler will be told: Fill one of the corners (or pillars) of Hell."
Al-Bazzar recorded it; its chain contains Aghlab bin Tamim, who is da'if (weak).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الخلافة / 9039