The third was ʿAbd al-Raḥmān ibn Abī Laylā:

Al-Marwazī narrated it in Zawāʾid al-Zuhd (1159), as did al-Ṭabarānī (714) and al-Bazzār (3095, in its supplementary material), through Layth ibn Abī Sulaym, from al-Ḥakam ibn ʿUtaybah, from him.

Shurayk also narrated the hadith from ʿAbd al-ʿAzīz ibn Rafīʿ, from Abū ʿUmar, from Umm al-Dardāʾ, who said:

“A man came to stay with Abū al-Dardāʾ …”

She then mentioned the hadith as part of a longer account.

Al-Nasāʾī narrated it in ʿAmal al-Yawm wa-l-Laylah (148), as did al-Ṭabarānī in al-Duʿāʾ (707).

Shurayk had poor retention.

As for Abū ʿUmar—the narrator from Abū al-Dardāʾ—a group of narrators reported from him, but he was not declared trustworthy. Al-Ḥāfiẓ Ibn Ḥajar said:

“Acceptable; but his narration from Abū al-Dardāʾ is mursal.”

I say: Perhaps al-Ḥāfiẓ based this on Shurayk’s narration; and it has the flaw I have mentioned.

As for the hadith of Abū Dharr:

Its documentation has preceded in this Silsilah (1125). The following should be added to its sources: Ibn Khuzaymah (748), al-Ḥumaydī (133), and al-Marwazī in Zawāʾid al-Zuhd (1157).

The first two added: “And at bedtime, the same.”

Its chain of transmission is authentic.