The other is that, although Mūsā ibn Masʿūd was one of al-Bukhārī’s shaykhs in his Ṣaḥīḥ, he had some weakness due to his poor retention.

Al-Dhahabī said in al-Mīzān:

“Truthful, Allah willing, but he makes mistakes. Aḥmad criticized him, and al-Tirmidhī declared him weak.”

Ibn Khuzaymah said: “He is not to be cited as evidence …”

Al-Ḥāfiẓ said in al-Taqrīb: “Truthful, poor in retention, and prone to textual misreadings.”

Ismāʿīl ibn ʿUlayyah and others corroborated him in Ibn Abī al-Dunyā’s narration, thus removing the concern over his poor retention.

However, the hadith has a corroborating report, narrated by ʿAlī ibn Zayd, from al-Ḥasan, from al-Ḍaḥḥāk ibn Sufyān al-Kilābī, that the Messenger of Allah, peace and blessings be upon him, said to him:

“O Ḍaḥḥāk, what is your food?” He replied, “O Messenger of Allah, meat and milk.” He said, “Then what does it become?” He replied, “What you already know.” He said, “Indeed, Allah, Mighty and Majestic, has made what comes out of the son of Adam a parable for this world.”

Aḥmad (3/452) and Ibn Abī al-Dunyā narrated it from Ḥammād ibn Zayd, from ʿAlī ibn Zayd.

Al-Mundhirī said (4/102):

“Aḥmad narrated it, and its narrators are narrators of the authentic collections, apart from ʿAlī ibn Zayd ibn Judʿān.”

I say: He is weak, as al-Ḥāfiẓ stated in al-Taqrīb.

I say: Ibn Khuzaymah said, “I do not cite him as evidence because of his poor retention.”

I say: One indication of his poor retention is that he used to invert hadiths. For Ḥammād ibn Zayd said: “ʿAlī ibn Zayd informed us—and he used to invert hadiths.”

Others described him as having become confused. Therefore, I fear that this is one of