Sahih al-Bukhari

I went to `Aisha and asked her to describe to me the illness of Allah's Messenger (ﷺ). `Aisha said, "Yes. The Prophet became seriously ill and asked whether the people had prayed. We replied, 'No. O Allah's Apostle! They are waiting for you.' He added, 'Put water for me in a trough." `Aisha added, "We did so. He took a bath and tried to get up but fainted. When he recovered, he again asked whether the people had prayed. We said, 'No, they are waiting for you. O Allah's Messenger (ﷺ),' He again said, 'Put water in a trough for me.' He sat down and took a bath and tried to get up but fainted again. Then he recovered and said, 'Have the people prayed?' We replied, 'No, they are waiting for you. O Allah's Apostle.' He said, 'Put water for me in the trough.' Then he sat down and washed himself and tried to get up but he fainted. When he recovered, he asked, 'Have the people prayed?' We said, 'No, they are waiting for you. O Allah's Messenger (ﷺ)! The people were in the mosque waiting for the Prophet (ﷺ) for the `Isha prayer. The Prophet (ﷺ) sent for Abu Bakr to lead the people in the prayer. The messenger went to Abu Bakr and said, 'Allah's Messenger (ﷺ) orders you to lead the people in the prayer.' Abu Bakr was a softhearted man, so he asked `Umar to lead the prayer but `Umar replied, 'You are more rightful.' So Abu Bakr led the prayer in those days. When the Prophet (ﷺ) felt a bit better, he came out for the Zuhr prayer with the help of two persons one of whom was Al-`Abbas. while Abu Bakr was leading the people in the prayer. When Abu Bakr saw him he wanted to retreat but the Prophet (ﷺ) beckoned him not to do so and asked them to make him sit beside Abu Bakr and they did so. Abu Bakr was following the Prophet (in the prayer) and the people were following Abu Bakr. The Prophet (prayed) sitting." 'Ubaidullah added "I went to `Abdullah bin `Abbas and asked him, Shall I tell you what Aisha has told me about the fatal illness of the Prophet?' Ibn `Abbas said, 'Go ahead. I told him her narration and he did not deny anything of it but asked whether `Aisha told me the name of the second person (who helped the Prophet (ﷺ) ) along with Al-Abbas. I said. 'No.' He said, 'He was `Ali (Ibn Abi Talib).

the mother of the believers: Allah's Messenger (ﷺ) during his illness prayed at his house while sitting whereas some people prayed behind him standing. The Prophet (ﷺ) beckoned them to sit down. On completion of the prayer, he said, 'The Imam is to be followed: bow when he bows, raise up your heads (stand erect) when he raises his head and when he says, 'Sami`a l-lahu liman hamidah' (Allah heard those who sent praises to Him) say then 'Rabbana wa laka l-hamd' (O our Lord! All the praises are for You), and if he prays sitting then pray sitting."

Once Allah's Messenger (ﷺ) rode a horse and fell down and the right side (of his body) was injured. He offered one of the prayers while sitting and we also prayed behind him sitting. When he completed the prayer, he said, "The Imam is to be followed. Pray standing if he prays standing and bow when he bows; rise when he rises; and if he says, 'Sami`a l-lahu-liman hamidah, say then, 'Rabbana wa laka lhamd' and pray standing if he prays standing and pray sitting (all of you) if he prays sitting." Humaid said: The saying of the Prophet (ﷺ) "Pray sitting, if he (Imam) prays sitting" was said in his former illness (during his early life) but the Prophet (ﷺ) prayed sitting afterwards (in the last illness) and the people were praying standing behind him and the Prophet (ﷺ) did not order them to sit. We should follow the latest actions of the Prophet.

(and he was not a liar) When Allah's Messenger (ﷺ) said, "Sami`a l-lahu liman hamidah" none of us bent his back (for prostration) till the Prophet (ﷺ) prostrated and then we would prostrate after him.

As above.

The Prophet (ﷺ) said, "Isn't he who raises his head before the Imam afraid that Allah may transform his head into that of a donkey or his figure (face) into that of a donkey?"

When the earliest emigrants came to Al-`Usba a place in Quba', before the arrival of the Prophet- Salim, the slave of Abu Hudhaifa, who knew the Qur'an more than the others used to lead them in prayer.

The Prophet (ﷺ) said, "Listen and obey (your chief) even if an Ethiopian whose head is like a raisin were made your chief."

Allah's Messenger (ﷺ) said, "If the Imam leads the prayer correctly then he and you will receive the rewards but if he makes a mistake (in the prayer) then you will receive the reward for the prayer and the sin will be his."

I went to 'Uthman bin Affan while he was besieged, and said to him, "You are the chief of all Muslims in general and you see what has befallen you. We are led in the Salat (prayer) by a leader of Al-Fitan (trials and afflictions etc.) and we are afraid of being sinful in following him." 'Uthman said. "As-Salat (the prayers) is the best of all deeds so when the people do good deeds do the same with them and when they do bad deeds, avoid those bad deeds." Az-Zuhri said, "In our opinion one should not offer Salat behind an effeminate person unless there is no alternative."

The Prophet (ﷺ) said to Abu-Dhar, "Listen and obey (your chief) even if he is an Ethiopian with a head like a raisin."

Once I passed the night in the house of my aunt Maimuna. Allah's Messenger (ﷺ) offered the `Isha' prayer and then came to the house and offered four rak`at an slept. Later on, he woke up and stood for the prayer and I stood on his left side. He drew me to his right and prayed five rak`at and then two. He then slept till I heard him snoring (or heard his breath sounds). Afterwards he went out for the morning prayer.

One night I slept at the house of (my aunt) Maimuna and the Prophet (ﷺ) was there on that night. He performed ablution and stood up for the prayer. I joined him and stood on his left side but he drew me to his right and prayed thirteen rak`at and then slept till I heard his breath sounds. And whenever he slept, he used to breathe with audible sounds. The Mu'adh-dhin came to the Prophet (ﷺ) and he went out and prayed the morning prayer) without repeating the ablution.

Once I passed the night in the house of my aunt Maimuna. The Prophet (ﷺ) stood for the night prayer and I joined him and stood on his left side but he drew me to his right by holding me by the head.

I used to pray the `Isha prayer with the Prophet (ﷺ) and then go to lead my people in the prayer.

Jabir bin `Abdullah said, "Mu`adh bin Jabal used to pray with the Prophet (ﷺ) and then go to lead his people in prayer Once he led the `Isha' prayer and recited Surat "Al-Baqara." Somebody left the prayer and Mu`adh criticized him. The news reached the Prophet (ﷺ) and he said to Mu`adh, 'You are putting the people to trial,' and repeated it thrice (or said something similar) and ordered him to recite two medium Suras of Mufassal." (`Amr said that he had forgotten the names of those Suras).

A man came and said, "O Allah's Messenger (ﷺ)! By Allah, I keep away from the morning prayer only because So and so prolongs the prayer when he leads us in it." The narrator said, "I never saw Allah's Apostle more furious in giving advice than he was at that time. He then said, "Some of you make people dislike good deeds (the prayer). So whoever among you leads the people in prayer should shorten it because among them are the weak, the old and the needy."

Allah's Messenger (ﷺ) said, "If anyone of you leads the people in the prayer, he should shorten it for amongst them are the weak, the sick and the old; and if anyone among your prays alone then he may prolong (the prayer) as much as he wishes. "

A man came and said, "O Allah's Messenger (ﷺ)! I keep away from the morning prayer because so-and-so (Imam) prolongs it too much." Allah's Messenger (ﷺ) became furious and I had never seen him more furious than he was on that day. The Prophet (ﷺ) said, "O people! Some of you make others dislike the prayer, so whoever becomes an Imam he should shorten the prayer, as behind him are the weak, the old and the needy.''

Once a man was driving two Nadihas (camels used for agricultural purposes) and night had fallen. He found Mu`adh praying so he made his camel kneel and joined Mu`adh in the prayer. The latter recited Surat 'Al-Baqara" or Surat "An-Nisa", (so) the man left the prayer and went away. When he came to know that Mu`adh had criticized him, he went to the Prophet, and complained against Mu`adh. The Prophet said thrice, "O Mu`adh ! Are you putting the people to trial?" It would have been better if you had recited "Sabbih Isma Rabbika-l-A`la (87)", Wash-shamsi wa duhaha (91)", or "Wal-laili idha yaghsha (92)", for the old, the weak and the needy pray behind you." Jabir said that Mu`adh recited Sura Al-Baqara in the `Isha' prayer.