The reward of the congregational prayer is twenty seven times greater (than that of the prayer offered by a person alone).

Abu Huraira said, "I heard Allah's Messenger (ﷺ) saying, 'The reward of a prayer in congregation is twenty five times greater than that of a prayer offered by a person alone. The angels of the night and the angels of the day gather at the time of Fajr prayer.' " Abu Huraira then added, "Recite the Holy Book if you wish, for "Indeed, the recitation of the Qur'an in the early dawn (Fajr prayer) is ever witnessed." (17:78).

Allah's Messenger (ﷺ) said, "The reward of the prayer offered by a person in congregation is twenty five times greater than that of the prayer offered in one's house or in the market (alone). And this is because if he performs ablution and does it perfectly and then proceeds to the mosque with the sole intention of praying, then for every step he takes towards the mosque, he is upgraded one degree in reward and his one sin is taken off (crossed out) from his accounts (of deeds). When he offers his prayer, the angels keep on asking Allah's Blessings and Allah's forgiveness for him as long as he is (staying) at his Musalla. They say, 'O Allah! Bestow Your blessings upon him, be Merciful and kind to him.' And one is regarded in prayer as long as one is waiting for the prayer."

The Prophet (ﷺ) said, "The prayer in congregation is twenty five times superior to the prayer offered by person alone."

Allah's Messenger (ﷺ) said, "The prayer in congregation is twenty seven times superior to the prayer offered by person alone."

Allah's Messenger (ﷺ) said, "By Him in Whose Hand my soul is I was about to order for collecting firewood (fuel) and then order Someone to pronounce the Adhan for the prayer and then order someone to lead the prayer then I would go from behind and burn the houses of men who did not present themselves for the (compulsory congregational) prayer. By Him, in Whose Hands my soul is, if anyone of them had known that he would get a bone covered with good meat or two (small) pieces of meat present in between two ribs, he would have turned up for the `Isha' prayer.'

Once Iqama was pronounced a man came to the Prophet (ﷺ) and detained him (from the prayer).

Once the Iqama was pronounced and the Prophet (ﷺ) was talking to a man (in a low voice) in a corner of the mosque and he did not lead the prayer till (some of) the people had slept (dozed in a sitting posture) .

On the day of Al-Khandaq (the trench), `Umar bin Al-Khattab went to the Prophet (ﷺ) and said, "O Allah's Messenger (ﷺ)! By Allah, I could not pray (the `Asr) till the sun had set." `Umar told this to the Prophet at the time when a fasting person had done Iftar (taken his meals). The Prophet (ﷺ) then went to Buthan and I was with him. He performed ablution and offered the `Asr prayer after the sun had set and then the Maghrib prayer.

Once Iqama was pronounced and the people had straightened the rows, Allah's Messenger (ﷺ) went forward (to lead the prayer) but he was Junub, so he said, "Remain in your places." And he went out, took a bath and returned with water trickling from his head. Then he led the prayer.