—namely, the hadith of the elevated concordant chains.
For it was transmitted by the Two Shaykhs, by Abū Dāwūd, Abū ʿĪsā, and Abū ʿAbd al-Raḥmān, all of them from Qutaybah ibn Saʿīd al-Thaqafī—may Allah have mercy on him.
It was uniquely related by Bukayr ibn al-Ashajj from Yazīd ibn Abī ʿUbayd; Bukayr died some time before Yazīd, and no one narrated it from him except ʿAmr ibn al-Ḥārith.
Ibn Wahb also reported it, corroborating Bakr ibn Muḍar, from ʿAmr with a similar wording—Allah knows best.

His brother:

81 – Yaʿqūb ibn ʿAbd Allah ibn al-Ashajj * (M, T, S, Q)
Abū Yūsuf, the jurist.
He narrated from Abū Umāmah ibn Sahl, Saʿīd ibn al-Musayyab, Abū Ṣāliḥ Dhakwān, and Kurayb.
Those who transmitted from him include his companion Yazīd ibn Abī Ḥabīb, Muḥammad ibn ʿAjlān, Ibn Isḥāq, al-Layth ibn Saʿd, and others.
Some scholars declared him reliable, and Muslim adduced his ḥadith as evidence.
He was martyred in the naval expedition (1) in 122 AH.

82 – Muḥammad ibn Juḥādah al-Kūfī ** (ʿ)
One of the trustworthy imams.
He narrated from Anas ibn Mālik several ḥadiths; however, they come through the transmission of Yaḥyā ibn ʿUqbah ibn Abī