Mohammad bin Saeed Abul Faraj narrated from Ahmad bin Mohammad bin Saeed, from Saad bin Turayf Al-Khaffaf, from Saeed bin Jubair, from Ibn Abbas, who said:
The MESSENGER OF ALLAH (SWT) said to ALI (ASWS) :
O ALI (ASWS) , I am the city of knowledge and you are its door. The city can only be entered through its door.
Those who claim that they love me but hate you are lying because you are from me and I am from you: your flesh is my flesh, your blood is my blood, your soul is from my soul, what you hide is what I hide, and what you show is what I show.
You are the Imam of my nation and my successor. Those who obey you succeed, and those who disobey you fail. Those who follow you will benefit, and those who are against you will lose. Those who are committed to you are winners, and those who abandon you are losers.
You and the IMAMS (ASWS) after you are like the ark of Nuh. The riders of the ark survived, and those who stayed behind drowned.
You are like the stars. Whenever one star disappears, another one appears until the Day of Judgement.
(Ref: Bihar Volume 40 Page 203 Hadees No.9 )