Institutionalization of Tarawih by Umar ᴿᴬ

I went out in the company of ʿUmar b. al-Khaṭṭāb one night in Ramaḍān 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, ʿUmar said: In my opinion, it would better to collect them under the leadership of one reciter. So, he made up his mind to congregate them behind Ubay b. Kaʿb. Then on another night, I went again in his company and the people were praying behind their reciter. On that, ʿUmar remarked: What an excellent bidʿah (innovation) this is; but the prayer which they do not perform and sleep at its time is better than the one they are offering. ˹What˺ he meant is the prayer in the last part of the night, (i.e. Tahajjud) ˹In those days˺ people used to pray in the early part of the night.

خَرَجْتُ مَعَ عُمَرَ بْنِ الْخَطَّابِ ؓ لَيْلَةً فِي رَمَضَانَ إِلَى الْمَسْجِدِ فَإِذَا النَّاسُ أَوْزَاعٌ مُتَفَرِّقُونَ، يُصَلِّي الرَّجُلُ لِنَفْسِهِ وَيُصَلِّي الرَّجُلُ فَيُصَلِّي بِصَلاَتِهِ الرَّهْطُ۔ فَقَالَ عُمَرُ: إِنِّي أَرَى لَوْ جَمَعْتُ هَؤُلاَءِ عَلَى قَارِئٍ وَاحِدٍ لَكَانَ أَمْثَلَ۔ ثُمَّ عَزَمَ فَجَمَعَهُمْ عَلَى أُبَىِّ بْنِ كَعْبٍ، ثُمَّ خَرَجْتُ مَعَهُ لَيْلَةً أُخْرَى وَالنَّاسُ يُصَلُّونَ بِصَلاَةِ قَارِئِهِمْ۔ قَالَ عُمَرُ: نِعْمَ الْبِدْعَةُ هَذِهِ! وَالَّتِي يَنَامُونَ عَنْهَا أَفْضَلُ مِنَ الَّتِي يَقُومُونَ، يُرِيدُ آخِرَ اللَّيْلِ، وَكَانَ النَّاسُ يَقُومُونَ أَوَّلَهُ۔

Malik related to me from Ibn Shihab from Urwa ibn az-Zubayr that Abd ar-Rahman ibn Abd al-Qari said, "I went out with Umar ibn alKhattab in Ramadan to the mosque and the people there were spread out in groups. Some men were praying by themselves, whilst others were praying in small groups. Umar said, 'By Allah! It would be better in my opinion if these people gathered behind one reciter.' So he gathered them behind Ubayy ibn Kab. Then I went out with him another night and the people were praying behind their Qur'an reciter. Umar said, 'How excellent this new way is, but what you miss while you are asleep is better than what you watch in prayer.' He meant the end of the night, and people used to watch the beginning of the night in prayer."

أَنَّهُ قَالَ خَرَجْتُ مَعَ عُمَرَ بْنِ الْخَطَّابِ فِي رَمَضَانَ إِلَى الْمَسْجِدِ فَإِذَا النَّاسُ أَوْزَاعٌ مُتَفَرِّقُونَ يُصَلِّي الرَّجُلُ لِنَفْسِهِ وَيُصَلِّي الرَّجُلُ فَيُصَلِّي بِصَلاَتِهِ الرَّهْطُ فَقَالَ عُمَرُ وَاللَّهِ إِنِّي لأَرَانِي لَوْ جَمَعْتُ هَؤُلاَءِ عَلَى قَارِئٍ وَاحِدٍ لَكَانَ أَمْثَلَ فَجَمَعَهُمْ عَلَى أُبَىِّ بْنِ كَعْبٍ قَالَ ثُمَّ خَرَجْتُ مَعَهُ لَيْلَةً أُخْرَى وَالنَّاسُ يُصَلُّونَ بِصَلاَةِ قَارِئِهِمْ فَقَالَ عُمَرُ نِعْمَتِ الْبِدْعَةُ هَذِهِ وَالَّتِي تَنَامُونَ عَنْهَا أَفْضَلُ مِنَ الَّتِي تَقُومُونَ يَعْنِي آخِرَ اللَّيْلِ وَكَانَ النَّاسُ يَقُومُونَ أَوَّلَهُ