Note / Clarification: In the manuscripts this name has been corrupted, through the dropping of the waw, into "Abd Allah bin Umar" (whereas he is Abd Allah bin Amr bin al-As); it has been corrected from "Ithaf al-Maharah" (11659) and the sources of the takhrij.

Grading: This report is sahih.
Technical note / Defect ('illah): Although Muhammad bin Ibrahim is majhul, he is not alone in narrating it, and the narrators above him are, on the whole, thiqah. Sufyan is "al-Thawri", and Khaythamah is "Ibn Abd al-Rahman al-Ju'fi".

Reference / Source: It was narrated from Sufyan al-Thawri by Waki' in "al-Zuhd" (271), and through his route by al-Khallal in "al-Sunnah" (1308) and al-Ajurri in "al-Shari'ah" (236). This chain is sahih.
Details of the narration: Al-Khallal added to it the wording that will come later with the author (al-Hakim) under number (8619).

Reference / Source: It was also narrated from Sufyan by Khalid bin Abd al-Rahman al-Khurasani (who is saduq and hasan al-hadith), in al-Tahawi's "Mushkil al-Athar" 2/ 172.

Reference / Source: It was narrated by Ibn Abi Shaybah in his "Musannaf" 11/ 23 and 15/ 176, by Ja'far al-Firyabi in "Sifat al-Nifaq" (106-108), and by al-Ajurri (237) and (238), via two other routes from al-A'mash, in the same way.

Corroborating chains and supporting reports: A similar report has also been narrated as marfu': Abu Nu'aym narrated in "Sifat al-Nifaq" (109) the hadith of Hudhayfah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Soon, at the end of time, people will pray in their mosques, yet there will be no (true) believer among them." I said: O Messenger of Allah! Will there be hypocrites among them? He said: "Yes, more apparent among you than they are today." But its chain is weak.