Reconciling the fact that the khaleefah should be from Quraysh with the hadeeth about obeying an Abyssinian slave

 

What is the understanding pertaining to the statement in the "Aqeedah " that the Khalifat belongs to the Quraish, how does the Hadith pertain to "Obey the Amir even if he be an Abysinnian with a head like a raisin", could you pls help us to reconcile this and may Allah guide us to accept the truth?

Praise be to Allaah. 

The hadeeth about the rulers being
from Quraysh is a saheeh hadeeth which was narrated through many isnaads.
The basic principle is that the leader should be from Quraysh. But in
the case where the khaleefah has seized power by force and is ruling
the people by force, the people have to obey him and it is haraam to
rebel against him, even if he is an Abyssinian slave as it says in the
hadeeth.