Superiority of the congregational Salat (prayer)

When the congregation was missed, Aswad (may Allah be pleased with him) would go to another mosque (where there was a possibility of joining the congregational prayer). And Anas bin Malik (may Allah be pleased with him) attended a mosque where the prayer had already been performed. He then gave the adhan, pronounced the iqamah, and prayed with the congregation.

Narrated `Abdullah bin `Umar: Allah's Apostle said, "The prayer in congregation is twenty seven times superior to the prayer offered by person alone."

Narrated Abu Sa`id Al-Khudri: The Prophet said, "The prayer in congregation is twenty five times superior to the prayer offered by person alone."

Narrated Abu Huraira: Allah's Apostle 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."