How sound is the Hadith: "This matter [the Caliphate] will remain with Quraysh as long as two of them are left"?

The hadith, "This matter will remain with Quraysh as long as two of them remain," is authentic and agreed upon. The "matter" here refers to the position of the Grand Caliphate. This hadith is evidence that the Caliphate is exclusive to Quraysh, and there has been a consensus among the Companions and those who followed them on this matter. Anyone who opposes this is refuted by the consensus of the Companions and the authentic hadiths. The most authoritative view is that this narration is in the imperative sense.