The incident of his embracing Islam is that once he was going angrily with a bare sword in hand. On the way, he met Hadhrat Na‘eem Bin Abdullah (May Allah be well pleased with him). Hadhrat Umar (May Allah be well pleased with him) did not know that Hadhrat Na‘eem had embraced Islam. He asked him: O Umar! Where are you going with a bare sword in hand? He said: Today I want to settle the affair of the Founder of Islam. Hadhrat Na‘eem said: First look into your own house. Your sister Fatima Bint Khattab and brother-in-law Sa‘eed bin Zaid (May Allah be well pleased with them) have embraced Islam.
He changed his course and went to his sister’s house and knocked at the door. Both of them were reciting the Holy Quran. Immediately, they stopped the recitation and the sister answered the door. Hadhrat Umar (May Allah be well pleased with him) angrily said: Have you also become a Muslim? Then he turned to his brother-in-law and threw him to the ground. He then sat on his chest and started beating him. When the sister intervened, Hadhrat Umar (May Allah be well pleased with him) gave her such a slap that her face started bleeding. His sister said in a strong voice: Umar! No matter what you do, Islam cannot leave our hearts now. The face of the sister and her words which were full of faith moved Hadhrat Umar. He was silent for some time. Then he said: Whatever you were reading, show it to me. His sister said: You are impure. Unless you purify yourself with a complete bath, you cannot touch the blessed pages of the Holy Quran. Hadhrat Umar (May Allah be well pleased with him) immediately took a bath. When he took the pages of the Holy Quran, his eyes fell on a verse from Surah Taha. On reading this verse, his hair stood on end. At this time, the Holy Prophet (Sallallahu alaihi wa sallam) was in “Dar Arqam.” When Hadhrat Umar (May Allah be well pleased with him) reached there with a sword in hand, the door was closed. The Muslims had received the news as to why he was there and there was a delay in opening the door. Hadhrat Hamza (May Allah be well pleased with him) said: Open the door! If he has come with good intentions, he will be welcomed. If not, his head will be severed from his body with his own body.
And How 2nd Calipah presented himself to the Holy Prophet (Sallallahu alaihi wa sallam)….
Hadhrat ‘Umar (May Allah be well pleased with him) entered the house. The Holy Prophet (Sallallahu alaihi wa sallam) asked: O Umar! Is it not time? Will you not give up? Embrace Islam! Hadhrat Umar recited the Kalima in a loud voice. Out of happiness, all the Muslims shouted “Allahu Akbar.” On this occasion, Jibreel (May peace be upon him) came to the Holy Prophet (Sallallahu alaihi wa sallam) and said: O Prophet of Allah! On ‘Umar’s embracing Islam, all the heavenly beings greeted each other and made celebrations.
Then on Hadhrat Umar’s request, Muslims openly offered Salaat in the Ka’aba. (Al Mawahib Al Ladunniya Ma’a Hashiya Zurqani, Vol. 2, Pg. No. 4-5; Subul Ul Huda War Rashad, Vol. 2, Pg. No. 372)
After embracing Islam, his anger remained the same. Love of the Holy Prophet (Sallallahu alaihi wa sallam) and attachment to Islam had entered so deep into his heart that he would be always ready to defend Islam and the Holy Prophet (Sallallahu alaihi wa sallam). In the Battle of Badr, he gave such an example of his faith that it will remain fresh until the end of time. His maternal uncle A’as bin Hisham stepped forward to fight in the battlefield. Hadhrat ‘Umar (May Allah be well pleased with him) himself went forward to do battle with him and gave him a blow that sent him to hell. (As Seeratun Nabawiyya Li Ibn Katheer, Vol. 2, Pg. No. 446)
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