In addition to this narrative...
In addition to this narrative, some Sunni resources have quoted from some of companions of messenger of Allah [PBUH] that caliphs come constantly: حدثنا ابن وهب عن عبد الرحمن بن زياد بن أنعم عن أبي عبد الرحمن الحبلي عن عبد الله بن عمرو بن العاص رضي الله عنهما قال: سيلي أمر هذه الأمة خلفاء يتوالون، كلهم صالح وعليهم تفتح الأرضين كلها “Abdullah ibn Amr ibn al-‘As” said: In soon future, caliphs will come one after another one, they’ll be the guardian of this nation and all of them are righteous… (5) The method of reasoning Considering these points, the method of reasoning to prove this matter is as follow: 1: Shias believe that successors of messenger of Allah [PBUH] are twelve persons, selected by god, have intrinsic knowledge and infallibility and wonderful qualities and qualities said in these narrative such as; number twelve, being fair and righteous, giving glory and stability of religion and Islam, guiding people based on divine {Quran} guidelines and fair attitude, are match with the existence of these right imams.
Thirdly: Sunni elders have confessed that the last person of these caliphs is a person named “Mahdi” and he’s from the descendent of messenger of Allah [PBUH] and their name is the same and will fill the earth with justice after coming.