Sufyan bin 'Uyaynah سفيان بن عيينة · The Book of the Commencement of the Prayer

"If Abdullah bin Mughaffal heard any one of us recite: 'In the Name of Allah, the Most Gracious, the Most Merciful', he would say: 'I prayed behind the Messenger of Allah (ﷺ) and behind Abu Bakr and behind Umar-may Allah be pleased with them both- and I did not hear any of them recite: 'In the Name of Allah, the Most Gracious, the Most Merciful."

"A man came to the Prophet (ﷺ) and said: 'I cannot learn anything of the Quran; teach me something that I can say instead of reciting the Quran.' He said: 'Say: SubhanAllah, wal-hamdulilah, wa la illaha ill-Allah, wa Allahu Akbar, wa la hawla wa la quwwata illa Billahil-aliy al-azim (Glory be to Allah, praise be to Allah, there is none worthy of worship except Allah, Allah is Most Great, and there is no power and no strength except with Allah…

Abu Hurairah (led them in prayer and) recited: "When the heaven is split asunder." and prostrated during it. When he had finished praying, he told them that the Messenger of Allah (ﷺ) had prostrated during it.

"The Messenger of Allah (ﷺ) prostrated during: 'When the heaven is split asunder.'"

"A man from among the Ansar passed Mu'adh leading two camels, when he (Mu'adh) was praying maghrib, and he was starting to recite Al-Baqarah. So that man prayed then went away. News of that reached the Prophet (ﷺ) and he said: 'Do you want to cause hardship to the people, O Mu'adh; do you want to cause hardship to the people, O Mu'adh? Why don't you recite: 'Glorify the Name of your Lord, the Most High' and 'By the sun…

"The Messenger of Allah (ﷺ) said: 'Make your voices beautiful when you recite Quran.'"

The Prophet (ﷺ) said: "Allah, the Mighty and Sublime, never listens to anything as He listens to a Prophet chanting the Quran."

Marwan appointed Abu Hurairah as governor of Al-Madinah. When he stood to offer an obligatory prayer, he would say the takbir, then he said the takbir when he bowed, and when he raised his head from bowing he said: "Sami' Allahu liman hamidah, Rabbana wa lakal-hamd (Allah hears those who praise Him; our Lord, and to You be the praise)." Then he would say the takbir when he went down in prostration, then he said the takbir when he stood…