ʿAbd Allah ibn Aḥmad said: “I asked my father about him and he replied, ‘He deteriorated in later years and is of no account.’ (1)

Abū Ḥātim said: I heard Ibn Maʿīn remark, “At the very least he must have read these writings to al-Layth, who then licensed him to transmit them; it is also possible that Ibn Abī Dhīb had written to al-Layth enclosing this very scroll.” (2)

Aḥmad ibn Ṣāliḥ said: “I know of no one who narrates from al-Layth on the authority of Ibn Abī Dhīb except Abū Ṣāliḥ. He mentioned that Abū Ṣāliḥ once produced a scroll whose upper part had been eaten away; he did not know whose ḥadith it contained. People said to him, ‘These are ḥadiths of Ibn Abī Dhīb,’ so he began to transmit them as: from al-Layth, from Ibn Abī Dhīb.” (3)

Ṣāliḥ Jazrah said: “Yahya ibn Maʿīn considered him reliable, but in my estimation he used to fabricate ḥadith.” (4)

Al-Nasāʾī said: “He is not trustworthy.” (5)

Ismāʿīl ibn ʿAbd Allah related—from ʿAbd Allah ibn Ṣāliḥ—who said: “I accompanied…"