The acceptance of Islam by Umar (may Allah be pleased with him)

Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) narrates: The Prophet (peace and blessings be upon him) said: "O Allah! Grant Islam strength through Umar bin al-Khattab or through Abu Jahl bin Hisham." So Allah Almighty accepted the supplication of the Prophet (peace and blessings be upon him) in favour of Sayyiduna Umar bin al-Khattab (may Allah be pleased with him), and through him He made Islam firm and demolished the idols.
Tabarani recorded it in al-Mu'jam al-Kabir, and in al-Mu'jam al-Awsat he recorded something similar in abridged form, in which the words are: "Support Islam." The narrators of al-Mu'jam al-Kabir are the narrators of the Sahih, except for Mujalid bin Sa'id, and he has been declared thiqah (trustworthy).

Sayyiduna Abu Bakr al-Siddiq (may Allah be pleased with him) narrates: I heard the Prophet (peace and blessings be upon him) say: "O Allah! Make Islam strong through Umar bin al-Khattab."
Tabarani recorded it in al-Mu'jam al-Awsat. Its chain contains a narrator, Muhammad bin al-Hasan bin Zabalah, who is matruk (abandoned).

Sayyiduna Anas bin Malik (may Allah be pleased with him) narrates: On Thursday evening the Prophet (peace and blessings be upon him) supplicated, saying: "O Allah! Grant Islam strength through Umar bin al-Khattab or through Amr bin Hisham." Then the next day, on Friday, Sayyiduna Umar (may Allah be pleased with him) accepted Islam.
Tabarani recorded it in al-Mu'jam al-Awsat. Its chain contains a narrator, al-Qasim bin Uthman al-Basri, who is da'if (weak).

Sayyiduna Umar bin al-Khattab (may Allah be pleased with him) narrates: Before I accepted Islam, I went out looking for the Prophet (peace and blessings be upon him). He had reached the mosque before me, and I stood behind him. He began reciting Surah al-Haqqah, and I was greatly amazed at the composition of the Qur'an. Sayyiduna Umar (may Allah be pleased with him) says: I thought: By Allah! This man is a poet, just as Quraysh say. Sayyiduna Umar (may Allah be pleased with him) says: Just then the Prophet (peace and blessings be upon him) recited this verse: "Indeed, it is the word of a noble Messenger, and it is not the word of a poet; little do you believe." I thought that he was a soothsayer, and the Prophet (peace and blessings be upon him) recited this verse: "Nor is it the word of a soothsayer; little do you take heed. It is a revelation from the Lord of the worlds," and he recited to the end of the surah. Sayyiduna Umar (may Allah be pleased with him) says: At that moment Islam settled completely in my heart.
Tabarani recorded it in al-Mu'jam al-Awsat, and its narrators are thiqat (trustworthy), except that the narrator Shurayh bin Ubayd did not meet the time of Sayyiduna Umar (may Allah be pleased with him).

Sayyiduna Thawban (may Allah be pleased with him) narrates: The Prophet (peace and blessings be upon him) said: "O Allah! Grant Islam strength through Umar bin al-Khattab." (The narrator states:) In the early part of the night Sayyiduna Umar (may Allah be pleased with him) had beaten his sister, who was reciting this verse: "Read in the name of your Lord who created." Sayyiduna Umar (may Allah be pleased with him) beat her so much that it seemed to him he might kill that woman. Then he got up in the early morning and heard her reciting: "Read in the name of your Lord who created." Sayyiduna Umar (may Allah be pleased with him) said: "By Allah! This is neither poetry nor humming (that is, chanting)." Then he went and came to the Prophet (peace and blessings be upon him). He found Sayyiduna Bilal (may Allah be pleased with him) at the door, and he knocked at the door. Sayyiduna Bilal (may Allah be pleased with him) asked: "Who is it?" He replied: "Umar bin al-Khattab." Sayyiduna Bilal (may Allah be pleased with him) said: "First let me seek permission for you from the Prophet (peace and blessings be upon him)." Sayyiduna Bilal (may Allah be pleased with him) said: "O Messenger of Allah! Umar is at the door." The Prophet (peace and blessings be upon him) said: "If Allah Almighty has intended good for Umar, He will bring him into the religion." He said to Sayyiduna Bilal (may Allah be pleased with him): "Open the door." The Prophet (peace and blessings be upon him) took hold of Sayyiduna Umar (may Allah be pleased with him) by both his sides, shook him and said: "What do you want, and why have you come?" Sayyiduna Umar (may Allah be pleased with him) said to him: "Present to me that to which you call." The Prophet (peace and blessings be upon him) said: "Bear witness that there is no god but Allah, He alone is God, He has no partner, and that Sayyiduna Muhammad (peace and blessings be upon him) is His servant and His Messenger." Sayyiduna Umar (may Allah be pleased with him) accepted Islam on the spot. The Prophet (peace and blessings be upon him) said: "Now go" (or Sayyiduna Umar (may Allah be pleased with him) asked: "Shall I go?").
Tabarani recorded it. Its chain contains a narrator, Yazid bin Rabi'ah al-Rahabi, who is matruk (abandoned); Ibn Adi said: "I hope there is no harm in him." The remaining narrators of this narration are thiqat (trustworthy).

Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) narrates: When Sayyiduna Umar (may Allah be pleased with him) accepted Islam, the people (that is, the polytheists of Makkah) said: "Now those people (that is, the Muslims) have become our equals."
Tabarani recorded it. Its chain contains a narrator, al-Nadr bin Umar, who is matruk (abandoned).

Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) says: The acceptance of Islam by Sayyiduna Umar (may Allah be pleased with him) was a source of relief, his emigration was a source of help, and his rule was a mercy. By Allah! We were not able to offer prayer (openly) until Sayyiduna Umar (may Allah be pleased with him) accepted Islam. When Sayyiduna Umar (may Allah be pleased with him) accepted Islam, he fought the people until they gave us the opportunity to offer prayer (openly).
Tabarani recorded it.

In one narration the words are: "We were not able to offer prayer openly near the Ka'bah." The narrators of this narration are the narrators of the Sahih, except that the narrator al-Qasim did not meet the time of his grandfather, Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him).

Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) narrates: The first to declare his Islam openly was Sayyiduna Umar bin al-Khattab (may Allah be pleased with him).
Tabarani recorded it, and its chain is hasan (good).