Muḥammad, Nāfiʿ, Saʿīd al-Maqburī, and his maternal uncle Ḥabīb ibn ʿAbd al-Raḥmān; ʿAṭāʾ ibn Abī Rabāḥ; ʿAmr ibn Shuʿayb; al-Zuhrī; Wahb ibn Kaysān; ʿAbd Allah ibn Dīnār; ʿAbd al-Raḥmān ibn al-Qāsim; Thābit al-Bunānī; Abū al-Zinād; Sumayy; Suhayl; Sālim Abū al-Naḍr; ʿAmr ibn Dīnār; Ṭalḥah ibn ʿAbd al-Malik, and many others.
Those who transmitted from him included: Ibn Jurayj, Maʿmar, Shuʿbah, Sufyān, Ḥammād ibn Salamah, Zāʾidah, Sulaymān ibn Bilāl, Ibn al-Mubārak, ʿAbd Allah ibn Numayr, ʿAlī ibn Mushir, Yaḥyā ibn Saʿīd, Muḥammad ibn Bishr, ʿĪsā ibn Yūnus, ʿAbbād ibn ʿAbbād, Muḥammad ibn ʿĪsā ibn Sumayʿ, Ibn Idrīs, Muḥammad ibn ʿUbayd, ʿAbd al-Razzāq, and many others besides them.
Abū Ḥātim said: “I asked Aḥmad ibn Ḥanbal about Mālik, Ayyūb, and ʿUbayd Allah ibn ʿUmar: which of them is the most reliable in transmitting from Nāfiʿ?”
He replied, “ʿUbayd Allah is the soundest of them, the most retentive, and the one with the greatest number of reports.”
Yaḥyā ibn Maʿīn said: “ʿUbayd Allah is among the trustworthy.”
ʿUthmān ibn Saʿīd reported: “I said to Ibn Maʿīn, ‘Do you prefer Mālik reporting from Nāfiʿ, or ʿUbayd Allah?’ He answered, ‘Both of them,’ and expressed no preference.”
Jaʿfar ibn Muḥammad ibn Abī ʿUthmān al-Ṭiyālisī narrated: “I heard Yaḥyā ibn Maʿīn say, ‘ʿUbayd Allah ibn ʿUmar—on the authority of al-Qāsim, from ʿĀʾishah—(reported) “Gold interlaced with pearls.”’(1)
I asked, ‘Is this chain dearer to you, or (that of) al-Zuhrī, from ʿUrwah, from ʿĀʾishah?’ He replied, ‘This one is dearer to me.’”
ʿAlī ibn al-Ḥasan al-Ḥisanjānī(2) narrated from Aḥmad ibn Ṣāliḥ, who said: