How the night Prayer (taraweeh) began in congregation

Bismillahirrahmanirrahim

✦ How the night Prayer (taraweeh) began in congregation

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Abdur Rahman bin 'Abdul Qari Radi Allahu Anhu 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 this is; but the prayer which they do not perform, but sleep at its time is better than the one they are offering.

Sahih Bukhari, Vol. 3, Book 32, 227

The Messenger of ALLAH Peace be upon him said Whoever among you lives will see great conflict.  I urge you to adhere to what you know of my Sunnah and the path of the
Rightly-Guided Caliphs, and cling stubbornly to it.

Sunan Ibn Majah, Book 1 , Hadith 43 - Sahih