Khabir or Khabeer خبير...
Khabir or Khabeer خبير: expert, learned, informed, connoisseur (of), specialist Khafaqan خفقان: palpitation (of heart, etc.) Khala`a or Khalaa`ah خلاعه: indecency, immorality, debauchery Khaleefa or Khalifah خليفه: caliph; the word "khalifah" refers to the successor of (ص) or simply to any ruler who claims that he rules the Muslims according to the will of the Almighty, whether he is justified in his claim or not. History has proven that most of these claims are false!
This person sees himself as the head not only of his country but of the entire Muslim nation, so let us leave him enjoying this thought! Another title for the khalifah is "Amir Al-Mu'mineen", Commander of the Faithful, which is explained above. Khalis خالص: whole, clear, pure, candid, genuine, exclusive Khandaq خندق: ditch, moat. This word reminds the Muslims of the "Battle of the Khandaq" which took place during Islam's early years, that is, in 627 A.D.
First of all, there are two theories about how contemporary Jews went to and settled in Mecca and Medina. One theory says that they fled the persecution of the Romans who had by then subjected Jerusalem, which Jews call Ur-shalom, the city of peace, and went to Arabia where they felt confident that the Romans would not chase them there. Arabia at that time did not have much to attract foreign invaders.
Another theory says that these Jews, who spoke Arabic besides Hebrew and Yiddish, had actually fled away from the persecution of cruel and fanatical Christian rulers of Nejran, southern Yemen, who were at the time appointed by the emperors of Abyssinia (Ethiopia). In Medina, most Jews settled within small fortified towns.
Upon settling down at Khaibar, one of their tribes, Banu Nadir, decided to seek revenge against the Muslims because of an incident which had taken place at Medina's main bazaar: A Jewish shop owner went from behind a Muslim woman and pulled her gown up, exposing her private parts. A Muslim man noticed the incident, attacked the Jew and killed him. The Jews went into a riot and contacted the Meccans.
Twenty Jewish leaders and 50 others from pagan Quraish made a covenant in the Ka`ba that as long as they lived, they would fight Muhammad and the Muslims. Then the Jews and Quraish contacted their allies and sent emissaries to a number of tribes. Banu Ghatfan, Banu Asad, Banu Aslam, Banu Ashja`, Banu Kinanah and Banu Fizarah readily responded.