Probably sensing the useful organizing power of Ibn Yasin's pious fervor, he was invited by the Lamtuna chieftain Yahya ibn Umar al-Lamtuni to preach to his people.

In the early 1050s, the Lamtuna, under the joint leadership of Yahya ibn Umar and Abdallah ibn Yasin-soon calling themselves the al-Murabitin ( Almoravids )-set out on campaign to bring their neighbors over to their cause.

Yahya ibn Umar was killed in a battle in 1057, but Abdullah ibn Yasin, whose influence as a religious teacher was paramount, named his brother Abu Bakr ibn Umar as chief.

They were, however, completely conquered by Abu Bakr ibn Umar, and adopted Islam as a religion.

In 1061, Abu Bakr ibn Umar made a division of the power he had established, handing over the more-settled parts to his cousin Yusuf ibn Tashfin, as viceroy, resigning to him also his favourite wife Zainab.

The Almoravids ' first military leader, Yahya ibn Umar al-Lamtuni, gave them a good military organization.

* Yahya ibn Umar al-Lamtuni ( c. 1050-1056 )

* Abu Bakr ibn Umar ( 1056 – 1087 )-partitioned reign from 1072.

And Umar ibn Khattab had embraced Islam after forty-five men and twenty-one women.

Al-Mutarrif had accused Muhammad of plotting with the rebel Umar ibn Hafsun, and Muhammad had been imprisoned.

The most powerful of the latter was Umar ibn Hafsun, who, from his impregnable fortress of Bobastro, controlled much of eastern Al-Andalus.

He first had to suppress the rebel Umar ibn Hafsun.

The city was sacked by the Samaritans in 529, but rebuilt by the Byzantine emperor Justinian I. Bethlehem was conquered by the Arab Caliphate of ' Umar ibn al-Khattāb in 637, who guaranteed safety for the city's religious shrines.

In 637, shortly after Jerusalem was captured by the Muslim armies, ' Umar ibn al-Khattāb, the second Caliph, promised that the Church of the Nativity would be preserved for Christian use.

The first four Caliphs: Abu Bakr as-Siddiq, Umar ibn al-Khattab, Uthman ibn Affan and Ali ibn Abi Talib are commonly known by Sunnis, mainly, as the Khulafā ’ ur-Rāshideen (" rightly guided successors ") Caliphs.

According to Edward G. Browne, the three most prominent mystical Persian poets Rumi, Sana ' i and Attar were all Sunni Muslims and their poetry abounds with praise for the first two caliphs Abu Bakr and Umar ibn al-Khattāb.

* Umar ibn al-Khattāb, 2nd Islamic Caliph

According to Edward G. Browne, Attar as well as Rumi and Sana ' i were all Sunni Muslims and their poetry abound with praise for the first two caliphs Abu Bakr and Umar ibn al-Khattāb.

According to Sunni Muslims, the first caliph to be called Amir al-Mu ' minin was Abu Bakr Siddique, followed by Umar ibn al-Khattāb, the second of the Four Rightly Guided Caliphs.

It is worthwhile pointing out that caliph Umar bin al-Khattāb died on the last night of the month of Dhūl-Hijjah of the year 23 AH, and was buried next day on the first day of Muharram of the new year 24 AH, corresponding to 644 CE.

Sunni Muslims regard the first four caliphs ( Abu Bakr, ` Umar ibn al-Khattāb, Uthman Ibn Affan and Ali ibn Abu Talib ) as " al-Khulafā ’ ur-Rāshidūn " or " The Rightly Guided Caliphs.

His long rule was an effective one, and it saw a rebirth of reforms that were originated by Umar bin Abd al-Aziz.

A senior-level U. S. government source told CNN in October 2001 that U. S. investigators believed Ahmed Omar Saeed Sheikh ( Ahmed Umar Syed Sheikh ), a long time ISI asset, using the alias Mustafa Muhammad Ahmad, sent more than $ 100, 000 from Pakistan to Mohamed Atta, the suspected hijack ringleader of the September 11, 2001 attacks.

The ' Golden Chain ' of narration ( i. e., that considered by the scholars of Hadith to be the most authentic ) consists of Malik, who narrated from Nafi ', who narrated from ibn Umar, who narrated from Muhammad.

This conclusion is further supported by the historical claims that during his rule, Umar banned the narration of the Prophets traditions and hadiths.

For example, a narration in Sahih Bukhari states explicitly that Ali and Zubair opposed Umar during the succession to Muhammad, or another narration that states that Umar was not invited to Fatima Zahra's secret funeral.

" We have also narrated in the Fawa ' id of Dawud ibn ` Amr and al-Dabbi compiled by al-Baghawi in the narration of ` Abd al-Rahman ibn Sa ` id ibn Yarbu ` al-Makhzumi from Malik al-Dar: he said: "` Umar ibn al-Khattab summoned me one day.

The importance of this is demonstrated in a narration in which a case was brought before the second caliph Umar concerning a marriage which had been witnessed by only one man and one woman ( i. e. the paticipants ); he responded: " This is a secret marriage and I do not permit it.

Sharia continued to undergo fundamental changes, beginning with the reigns of caliphs Abu Bakr ( 632 – 34 ) and Umar ( 634 – 44 ), during which time many questions were brought to the attention of Muhammad's closest comrades for consultation.

When Dormammu's minion, criminal gang-leader The Hood, questions Satana to learn about his master, the demoness refers to Umar as having been killed by her brother.

During the reign of Umar bin Abdul Aziz ( 717 – 720 A. D .), it is reported that no one in Medina needed the zakat.

There is no direct injunction of the Quran regarding Waqf, but there is a hadith which says " Ibn Umar reported, Umer-Ibn-Al-Khitab got land in khyber, so he came to the prophet Muhammad ( peace be upon him ) and asked him to advice him about it.

Muslims usually migrated at night due to fear of Quraish's resistance to that migration, but Umar is reported to have migrated openly during the day time saying ; Any one who wants to make his wife a widow and his children orphans.

Following the apprehension of Umar Farouk Abdul Mutallab, an alleged suicide bomber who is reported to have been trained and equipped in Yemen, Michelle Shephard, writing in the Toronto Star, published excerpts of an interview she conducted with Bodine.

' Umar ibn al-Khattab reported that Muhammad said, " No one among you does wudu and does wudu thoroughly – or adequately – and then testifies, ' There is no god but Allah Alone with no partner and I testify that Muhammad is Allah's Messenger ', without the eight doors of the Garden being opened to him so that he can enter by whichever of them he wishes.

It is based on the words of Umar himself, as reported to Ibn Ishaq by Ibn Al-Abbas.

Umar is reported to have said that he feared that the unity of the Muslim community would dissolve then and there.

" TIME reported that Hamzah described his relationship with Bashir and Laskar Jihad leader Jafar Umar Thalib as " very close ", but TIME added, " many see this relationship as a purely political ploy to woo Muslim voters ahead of the 2004 election.

It was reported that Umar bin Khattab asked Ubay ibn Kaab about Taqwa.

As instructed by the Caliph Umar, Saad reported everything to Umar.

He reported the matter to Umar.

Umar ibn Khattab is reported to have said " If it were not for Ali, Umar would not have survived.

Other questionable acts are reported as follows: Lubaynah was a slave girl of Umar.

It is reported that Umar declared in public:

Before his march, Usama sent Umar to Caliph Abu Bakr and is reported to have said: However, Abu Bakr refused.

Umar is reported to have said:

At this point, Umar is reported to have said: