Mukhtasar Bukhari

Narrated Abu Huraira (may Allah be pleased with him): I heard the Messenger of Allah (peace and blessings of Allah be upon him) say: "The prayer in congregation is twenty-five times superior (in reward) to the prayer of anyone of you alone. And the angels of the night and the angels of the day gather at the Fajr prayer." After that, Abu Huraira (may Allah be pleased with him) used to say: If you wish, recite this verse: "Indeed, the recitation of the Qur'an at dawn is ever witnessed (i.e., attended by the angels)." (Bani Isra'il: 78)