486 - Kathir ibn 'Ubayd informed us, Muhammad ibn Harb narrated to us from al-Zubaydi, from al-Zuhri, from Sa'id ibn al-Musayyib, from Abu Hurayrah, that the Messenger of Allah, peace and blessings be upon him, said: "The prayer offered in congregation surpasses the prayer of one of you alone by twenty-five parts, and the angels of the night and the angels of the day gather together at the dawn prayer." And recite, if you wish: {And the recitation of dawn, indeed the recitation of dawn is witnessed} [Al-Isra: 78].

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It was also recorded by Ahmad (7491), (8120), (8538), and (9151), and Ibn Hibban (1736) and (2061) through multiple chains from Abu Hurayrah with similar wording. At the end of Ahmad's narration (9151) (and similarly in Ibn Hibban 2061), al-A'mash said: I do not know it except that he said in it: "So forgive them on the Day of Judgment."
See also the following hadith.

Al-Nawawi said in "Sharh Muslim" 5/133: His saying, peace and blessings be upon him: "Angels take turns among you..." contains evidence for those grammarians who hold that it is permissible to make explicit the plural and dual pronoun in the verb when it precedes, which is the language of the Banu al-Harith. They cited as evidence their saying: "Akaluni al-baraghith" (The fleas bit me). Al-Akhfash and those who agreed with him interpreted the saying of Allah the Exalted: {And they kept secret the conversation, those who wronged} accordingly. But Sibawayh and most grammarians hold that it is not permissible to make the pronoun explicit when the verb precedes, and they interpret all such cases, making the noun that follows a substitute (badal) for the pronoun, not the subject of the verb. As if when it was said: "And they kept secret the conversation," it was asked: "Who are they?" and it was said: "Those who wronged." Likewise: "They take turns" and similar cases.

(1) In (H) and (YH): the congregation (al-jam').
(2) Its chain is authentic. Muhammad ibn Harb: he is al-Khawlani al-Abrash, and al-Zubaydi: he is Muhammad ibn al-Walid, and al-Zuhri: he is Muhammad ibn Muslim ibn Shihab. It is in "Al-Sunan al-Kubra" under number (461).
It was also recorded in full by al-Bukhari (648) and Muslim (649): (246) via the chain of Shu'ayb ibn Abi Hamzah, from al-Zuhri, from Sa'id ibn al-Musayyib and Abu Salamah ibn 'Abd al-Rahman, from Abu Hurayrah, and in it there is an explicit statement that his saying: "And recite, if you wish..." is from the statement of Abu Hurayrah.
It was also recorded in full by Ahmad (7185), al-Bukhari (4717), and Muslim (649): (246) via the chain of Ma'mar, from al-Zuhri with it, and al-Bukhari paired with Sa'id, Abu Salamah ibn 'Abd al-Rahman, and in their versions there is also the explicit statement of Abu Hurayrah's saying: "Recite, if you wish..." =