Sahih Muslim, 4729

It has been narrated on the authority of Hasan who said:Ubaidullah b Ziyad visited Ma'qil b. Yasir al-Muzani in his last iliness. Ma'qil said (to him): I am narrating to you a tradition I heard from the Messenger of Allah (ﷺ). If I knew that I am to survive this illness. I would, not narrate it to you. I heard the Messenger of Allah (ﷺ) say: If God appointed anyone ruler over a people and he died while he was still treacherous to his people, God would forbid his entry into Paradise

Rapporté par Hasan : Ubaidullah ibn Ziyad est venu rendre visite à Ma'qil ibn Yasir al-Muzani pendant sa dernière maladie. Ma'qil lui a dit : « Je vais te rapporter une parole que j’ai entendue du Messager d’Allah ﷺ. Si je pensais guérir de cette maladie, je ne te la dirais pas. J’ai entendu le Messager d’Allah ﷺ dire : “Si Allah confie à quelqu’un la direction d’un peuple et qu’il meurt alors qu’il a trahi ce peuple, Allah lui interdira l’entrée au Paradis.” »