This is an authentic hadith with a singular chain of transmission. Al-Bukhari also recorded it (1) with a lower isnad that passes through al-Husayn from Ahmad ibn Maniʿ, whereas the chain that reached us is higher. Al-Husayn is Ibn Muhammad al-Qabbani, a disciple of al-Bukhari, and he is the principal transmitter of Ahmad ibn Maniʿ’s Musnad.

262 – Ibn Shawdhab, ʿAbd Allah ibn ʿUmar ibn Aḥmad ibn ʿAlī
The Qur’an reciter and hadith scholar, Abū Muhammad ʿAbd Allah ibn ʿUmar ibn Aḥmad ibn ʿAlī ibn Shawdhab al-Wāsiṭī.
He studied under Shuʿayb ibn Ayyūb, Muḥammad ibn ʿAbd al-Malik al-Daqīqī, Ṣāliḥ ibn al-Haytham, and Jaʿfar ibn Muḥammad, all natives of Wāsiṭ.
Those who narrated from him include Manṣūr ibn ʿAbd Allah, Abū Bakr ibn Lāl, Abū ʿAbd Allah Ibn Mandah, Ibn Jumayʿ al-Ṣaydāwī, Abū ʿAlī al-Rūdhbārī, and several others.
He was born in 249 AH.
Abū Bakr Aḥmad ibn Bīrī said, “I never saw anyone whose recitation of the Book of Allah was finer than his.” He also reported that Ibn Shawdhab died in 342 AH, in the month of Rabīʿ al-Thānī.

263 – Ibn al-Akhram, Muḥammad ibn Yaʿqūb al-Shaybānī
The Imām, ḥāfiẓ, scrupulous authority, Abū ʿAbd Allah Muḥammad ibn Yaʿqūb ibn Yūsuf al-Shaybānī al-Naysābūrī, known as Ibn al-Akhram and, in earlier times, as Ibn al-Kirmānī.