Twelve revivers of Caliphate

The term Twelve reviver Caliphs or Twelve successors refers to a hadith of the Islamic prophet Muhammad in which he said that after him there would be twelve successors mentioned as "Khalifa" who would guide Islam well according to the Quran and the Sunnah. (Similar hadith talk of twelve "men" (Muslim 1821b) or twelve Muslim "rulers" (Sahih al-Bukhari 7222, 7223).) According to the Hadith they all are will be from the Quraysh. Those twelve caliphs are sometimes referred to by scholars as "Rashidun" ("Rightly Guided") or as "Mujaddid".

In bible

Some scholars point out similar verse from bible one well known verse from Genesis 17:20 where it talks about the children of Ishmael:

And as for Ishmael, I have heard you: I will surely bless him; I will make him fruitful and will greatly increase his numbers. He will be the father of twelve rulers, and I will make him into a great nation.

— Bible, Genesis 17:20

Hadith

Two sets of very similar versions of the hadith are included in Sahih Hadith collections Sahih al-Bukhari (7222, 7223),

Narrated Jabir bin Samura:
I heard the Prophet (ﷺ) saying, "There will be twelve Muslim rulers (who will rule all the Islamic world)." He then said a sentence which I did not hear. My father said, "All of them (those rulers) will be from Quraish."

and Sahih Muslim (1821a, 1821b, 1821c),

It has been narrated on the authority of Jabir b. Samura who said:
I joined the company of the Prophet (ﷺ) with my father and I heard him say: This Caliphate will not end until there have been twelve Caliphs among them. The narrator said: Then he (the Holy Prophet) said something that I could not follow. I said to my father: What did he say? He said: He has said: All of them will be from the Quraish.

List

According to the largest school of Islam, Sunni Islam, there are four or five caliphs who are considered Rashiduns or Mujaddids

The Rashidun Caliphs (632–661)

The famous four Rashidun Caliph are considered as the confirmed caliphs out those 12 Caliphs because of the hadith of prophet Muhammad where he foretold the prophetic caliphate will last for 30 years

Abu bakr

Umar I

Uthman

Ali

Umar II

Umar ibn Abd al-Aziz

The sunni branch of islam consider Umar ibn Abd al-Aziz to the first mujaddid and 5th of the rashidun caliph because of his efforts and sacrifice for the revival of caliphate system. He famously renewed the shura system after his predecessor Suleiman nominated him before death he rejected it and asked the muslim ummah again to ensure his legitimacy by shura.