Muḥammad ibn Muhājir, al-Walīd ibn Muḥammad al-Muwaqqarī, Bakr ibn Muḍar, and a number of others.
Among those who narrated from him were: al-Bukhārī, Yaḥyā ibn Maʿīn, adh-Dhuhlī, Abū Isḥāq al-Jawzajānī, Ismāʿīl Sammūyah, Abū Ḥātim, Yaʿqūb al-Fasawī, Aḥmad ibn ʿAbd al-Wāḥid ibn ʿAbbūd, Yaḥyā ibn ʿUthmān ibn Ṣāliḥ, Abū Yazīd al-Qarāṭīsī, Isḥāq ibn Sayyār an-Naṣībī, Bakr ibn Sahl ad-Dimyāṭī, Abū Bakr aṣ-Ṣāghānī, ar-Rabīʿ ibn Sulaymān al-Murādī, and others besides.
Yaḥyā ibn Maʿīn said, “The two most reliable transmitters of the Muwaṭṭaʾ are ʿAbd Allāh ibn Yūsuf and al-Qaʿnabī.”
He also said, “No one still walking the face of the earth is more trustworthy in the Muwaṭṭaʾ than he,” meaning ʿAbd Allāh ibn Yūsuf. (1)
Al-Bukhārī said, “He was among the firmest of the Syrian transmitters.” (2)
Abū Mushir said, “He and I heard the Muwaṭṭaʾ in the year 166 AH.” (3)
Abū Ḥātim and others declared him “reliable.” (4)
Ibn ʿAdī said, “Truthful, upright, and virtuous.” (5)
Aḥmad ibn al-Barqī and others stated that he died in 218 AH. (6)
Ibn Yūnus said, “Trustworthy, sound in hadith; he also possessed a collection of legal questions from Mālik.” (7)