Sahih Muslim Book 1, Hadith Number 261.

Chapter : The ruler who is unjust to his subjects deserves punishment of Fire.

Hasan reported: ‘Ubaidullah b. Ziyad paid a visit to Ma’qil b. Yasar Muzani in his illness of which he (later on) died. (At this juncture) Ma’qil said: I am going to narrate to you a hadith which I have heard from the Messenger of Allah (may peace be upon him) and which I would not have transmitted if I knew that I would survive. Verily I have heard the Messenger of Allah (may peace be upon him) say: There is none amongst the bondsmen who was entrusted with the affairs of his subjects and he died in such a state that he was dishonest in his dealings with those over whom he ruled that the Paradise is not forbidden for him.