That a man from Juhaynah informed him that he heard the Prophet—peace be upon him—reciting in the morning prayer {When the earth is shaken with its [final] earthquake} [az-Zalzalah: 1] in both rak'ahs, and I do not know whether the Messenger of Allah—peace be upon him—forgot or recited that deliberately.(1)

134 - Chapter: Recitation in the Fajr Prayer

817 - Ibrahim ibn Musa ar-Razi narrated to us, 'Isa—meaning ibn Yunus—informed us, from Isma'il, from Asbagh, the freed slave of 'Amr ibn Hurayth, from 'Amr ibn Hurayth, who said: It is as if I hear the voice of the Prophet—peace be upon him—reciting in the morning prayer {But I swear by the retreating stars (15), the running, hiding ones} [at-Takwir: 15-16].(2)

135 - Chapter: One Who Abandons Recitation in His Prayer

818 - Abu al-Walid at-Tayalisi narrated to us, Hammam narrated to us, from Qatadah, from Abu Nadrah--------------------------------------------
(1) Its chain is authentic. Ibn Abi Hilal: he is Sa'id, and 'Amr: he is ibn al-Harith, and ibn Wahb: he is 'Abdullah. Al-'Ayni authenticated its chain in "'Umdat al-Qari" 6/32. Al-Bayhaqi also transmitted it 2/390 via the path of Abu Dawud, with this chain.
Sa'd ibn Sa'id ibn Qays al-Ansari contradicted Sa'id ibn Abi Hilal—who is trustworthy—in the chain of this hadith, as found in Abu Dawud's "al-Marasil" (40), narrating it from Mu'adh ibn 'Abdullah, from Sa'id ibn al-Musayyab as a mursal report. Sa'd ibn Sa'id is criticized regarding his memory, so his contradiction is not to be considered.
(2) An authentic hadith. Asbagh, the freed slave of 'Amr ibn Hurayth, is a supporting narrator, and the rest of its narrators are trustworthy.
Isma'il: he is ibn Abi Khalid.
Ibn Majah also transmitted it (817) via the path of Isma'il ibn Abi Khalid, with it. Muslim transmitted it (456) and (475), and an-Nasa'i in "al-Kubra" (1025) and (11587) via the path of al-Walid ibn Sarī', from 'Amr ibn Hurayth.
An-Nasa'i also transmitted it (11586) via the path of Abu al-Aswad, the freed slave of 'Amr ibn Hurayth, from 'Amr ibn Hurayth.
It is also in "Musnad Ahmad" (18733) and "Sahih Ibn Hibban" (1819).