Mohammad bin Abdillah bin Abi Ubaidillah Al-Shaibani narrated from Mohammad bin Yahya Al-Tameemi, from Abu Qotada Al-Harrani, from his father, from Hareth bin Al-Khazraj the holder of the flag of Ansar, who said:
I heard the MESSENGER OF ALLAH (SWT) telling ALI BIN ABI TALEB (ASWS):
No one precedes you after me except a Kafer, and no one disobeys you except a Kafer. The people of the skies call you the COMMANDER OF THE BELIEVERS (ASWS) by the order of ALLAH (SWT).
(Ref : Bihar Volume 37 Pagae310 Hadees No. 43)