I said: Yaʿqūb has no involvement in this ḥadīth as he is a follower as previously mentioned. In fact, al-Ḥākim also reported it (4/54) through two other chains from Ibrāhīm, thus Yaʿqūb is absolved of responsibility, and the defect is confined to Ibrāhīm. However, al-ʿIrāqī mentioned that it has supporting evidence from the narration of al-Ṭabarānī in "al-Muʿjam al-Awsaṭ," which he included in the biography of Muṣʿab ibn Ibrāhīm ibn Ḥamzah ibn Muḥammad ibn Ḥamzah ibn Muṣʿab ibn al-Zubayr ibn al-ʿAwwām, number (9327). He said: Muṣʿab narrated to us, my father narrated to me, ʿAbd Allāh ibn Muṣʿab ibn Thābit ibn ʿAbd Allāh ibn al-Zubayr narrated from Hishām ibn ʿUrwah from his father from al-Zubayr, raised to the Prophet, and the context of the ḥadīth for him was: "It is not narrated from al-Zubayr except through this isnād." Al-ʿIrāqī said: "This ḥadīth is suitable to be considered for corroboration and testimony, for ʿAbd Allāh ibn Muṣʿab ibn Thābit was mentioned by Ibn Ḥibbān in 'al-Thiqāt,' and weakened by Ibn Maʿīn." I said: It is suitable for testimony as his statement indicates, for a group of reliable narrators have reported from him. Ibn Abī Ḥātim (2/2/178) reported from his father: "He is a shaykh, similar to ʿAbd al-Raḥmān ibn Abī al-Zinād." Meaning he is similar in narration, and it is established that he is ḥasan in ḥadīth, so Ibn Muṣʿab is considered like him or close to him, thus at the very least he is suitable for support and testimony with his ḥadīth. The rest of the narrators are reliable except for al-Ṭabarānī's shaykh, Muṣʿab, as I did not find a biography for him as was mentioned in the verification of another ḥadīth in "al-Muʿjam al-Ṣaghīr" (number - 56 - al-Rawḍ al-Naḍīr), but he has been followed up. Al-Bayhaqī reported it in "al-Manāqib" (1/33) from the chain of Ibrāhīm ibn Ḥamzah: ʿAbd Allāh ibn Muṣʿab ibn Thābit narrated it