Narrator names are parsed automatically from the isnad; identity and biographical details are matched from rijal sources (Itqan narrator profiles, muslimscholars.info).
'Abdur Rahman bin 'Abdul Qari said, "I went out in the company of 'Umar bin Al-Khattab one night in Ramadan to the mosque and found the people praying in different groups. A man praying alone or a man praying with a little group behind him. So, 'Umar said, 'In my opinion I would better collect these (people) under the leadership of one Qari (Reciter) (i.e. let them pray in congregation!)'. So, he made up his mind to congregate them behind Ubai bin Ka'b. Then on another night I went again in his company and the people were praying behind their reciter. On that, 'Umar remarked, 'What an excellent Bid'a (i.e. innovation in religion) this is; but the prayer which they do not perform, but sleep at its time is better than the one they are offering.' He meant the prayer in the last part of the night. (In those days) people used to pray in the early part of the night."
Narrated `Umar bin Khattab: I heard Hisham bin Hakim bin Hizam reciting Surat-al-Furqan during the lifetime of Allah's Messenger (ﷺ), and I listened to his recitation and noticed that he recited it in several ways which Allah's Messenger (ﷺ) had not taught me. So I was on the point of attacking him in the prayer, but I waited till he finished his prayer, and then I seized him by the collar and said, "Who taught you this Surah which I have heard you reciting?" He replied, "Allah's Messenger (ﷺ) taught it to me." I said, "You are telling a lie; By Allah! Allah's Messenger (ﷺ) taught me (in a different way) this very Surah which I have heard you reciting." So I took him, leading him to Allah's Messenger (ﷺ) and said, "O Allah's Messenger (ﷺ)! I heard this person reciting Surat-al-Furqan in a way that you did not teach me, and you have taught me Surat-al-Furqan." The Prophet said, "O Hisham, recite!" So he recited in the same way as I heard him recite it before. On that Allah's Messenger (ﷺ) said, "It was revealed to be recited in this way." Then Allah's Messenger (ﷺ) said, "Recite, O `Umar!" So I recited it as he had taught me. Allah's Messenger (ﷺ) then said, "It was revealed to be recited in this way." Allah" Apostle added, "The Qur'an has been revealed to be recited in several different ways, so recite of it that which is easier for you."
'Umar bin Al-Khattab said: I heard Hisham bin Al-Hakim reciting Surat Al-Furqan during the lifetime of Allah's Messenger (ﷺ). I listened to his recitation and noticed that he recited it in several different ways which Allah's Messenger (ﷺ) had not taught me. So I was about to jump over him during his Salat (prayer) but I waited till he finished his Salat (prayer) whereupon I put, either his upper garment or my upper garment around his neck and seized him by it and asked him, "Who has taught you this Surah?" He replied: "Allah's Messenger (ﷺ) has taught it to me." I said (to him), "You have told a lie! By Allah, Allah's Messenger (ﷺ) has taught me this Surah which I have heard you reciting." So I dragged him to the Allah's Messenger (ﷺ). I said: "O Allah's Messenger I have heard this man reciting Surat Al-Furqan in a way in which you have not taught me, and you did teach me Surah Al-Furqan." On that Allah's Messenger (ﷺ) said, "O 'Umar, release him! Recite, O Hisham". So Hisham recited before him in the way as I heard him reciting. Allah's Messenger (ﷺ) said, "It has been revealed like this." Then Allah's Messenger (ﷺ) said, "Recite, O 'Umar" So recited it. The Prophet (ﷺ) said, "It has been revealed like this." And then he added, "This Qur'an has been revealed to be recited in seven different ways, so recite it whichever way is easier for you."