“This is a good chain of transmission.” Al-Bayhaqī concurred with him.

Al-Ḥākim said: “It is authentic according to the criteria of the two Shaykhs!” Al-Dhahabī agreed with him as well!

I say: This is astonishing on the part of all of them—especially al-Dhahabī—for he himself included this Isḥāq ibn Ibrāhīm in al-Ḍuʿafāʾ and said: “Muḥammad ibn ʿAwf declared him a liar, and Abū Dāwūd said: ‘He is of no consequence.’”

Al-Ḥāfiẓ said in al-Taqrīb: “Truthful, but makes many mistakes; Muḥammad ibn ʿAwf categorically stated that he lies.”

Moreover, he was not among the narrators of the two Shaykhs, as al-Dhahabī claimed in following al-Ḥākim!

As for ʿAbd Allāh ibn Sālim, he is al-Ashʿarī al-Wuḥāẓī al-Ḥimṣī, and Muslim did not narrate from him. He is trustworthy, as are all the other narrators; they are among the narrators of the two Shaykhs. Thus, the hidden defect lies with Isḥāq ibn Ibrāhīm.

However, he was not alone in narrating this hadith, for it has another chain, transmitted by Bishr ibn Rāfiʿ, from Abū ʿAbd Allāh, the cousin of Abū Hurayrah, who said: “Whenever the Messenger of Allah, peace and blessings be upon him, recited, ‘not those who incur wrath, nor those who go astray,’ he would say, ‘Amen,’ loud enough for those nearest to him in the first row to hear.”

One version adds: “The mosque would resound with it.”

It was related by Abū Dāwūd (934) and Ibn Mājah (853), the latter including the addition.