Some of them said: Yūnus was dignified, held in great esteem in Isfahān, and was described as devout, upright, and righteous. (1)
He died in 267 AH.
He transmitted the Qurʾānic reading from Qutaybah ibn Mihrān, the associate of al-Kisāʾī.

228 – Aḥmad ibn Mahdī ibn Rustum, Abū Jaʿfar al-Iṣbahānī*
The Imām, exemplar, devoted worshipper, ḥāfiẓ, and precise authority, Abū Jaʿfar al-Iṣbahānī.
He heard ḥadith from Abū Nuʿaym, Abū al-Yamān, Saʿīd ibn Abī Maryam, Muslim ibn Ibrāhīm, Qabīṣah ibn ʿUqbah, ʿAbd Allāh ibn Ṣāliḥ, Abū Salamah, and their contemporaries; he collected traditions and authored works.
Those who narrated from him include the ḥāfiẓ Muḥammad ibn Yaḥyā ibn Manda, Aḥmad ibn Ibrāhīm ibn Afrijah, Aḥmad ibn Jaʿfar al-Simsār, and several others.
Muḥammad ibn Yaḥyā ibn Manda said: “During the last forty years no one more reliable than him has taught in our region.”
He compiled a Musnad, and for forty years he knew no bed—he was wholly devoted to worship. (2)
Abū Nuʿaym the ḥāfiẓ said: “He owned estates and wealth, and he spent on the people of …”