The Imam and the successor after me

Ahmad bin Mohammad bin Imran narrated from Hasan bin Mohammad Al-Askari, from Ibrahim bin Ubadillah, from Abdul Razzaq, from Mo’ammar, from Yahya bin Abi Katheer, from his father, from Abu Harun Al-Abdi, from Jabir bin Abdillah Al-Ansari, who said:

The Messenger of Allah said the following about Ali bin Abi Taleb:

He was the first one to believe in Islam;
He is the most knowledgeable;
He is the most correct one in his DEEN (religion);
He is the most certain;
He is the most patient;
He is the most forgiving and generous;
He is the most brave;
He is the Imam and the successor after me.

(Ref : Bihar Volume 38 Page No.90 Hadees No.2)