Al-Ḥāfiẓ Ibn ʿAsākir states: He likewise heard ḥadith from Marwān ibn Muʿāwiyah, Muḥammad ibn Ḥarb, Muḥammad ibn Shuʿayb ibn Shābūr, and a number of others he mentioned by name.
He adds: Among those who transmitted from him were Abū Zurʿah, Abū Ḥātim, and ʿAbdān al-Jawāliqī.
Abū Ḥātim said, “He is truthful.” (1)
Abū Zurʿah said, “His retention was superior to that of Muḥammad ibn Muṣaffā.” (2)
Dāwūd ibn al-Ḥusayn al-Bayhaqī reported: “ʿAmr ibn ʿUthmān al-Ḥimṣī—the noble son of a noble man—narrated to us.”
I say: He died in the month of Ramadan, 251 AH.
It is also said that he died in 250 AH, at a little over eighty years of age.
Some of his higher-level chains have reached us in (al-Baʿth) and in (Ṣifat al-Munāfiq).

And his brother:

116 – Yaḥyā ibn ʿUthmān Abū Sulaymān al-Ḥimṣī * (D, S, Q)
A devout, righteous man, Abū Sulaymān.
He heard ḥadith from Baqiyyah ibn al-Walīd, Wakīʿ, al-Walīd ibn Muslim, Muḥammad ibn Ḥimyar, and several others.
Those who narrated from him include Abū Dāwūd, al-Nasāʾī, Ibn Mājah as well, and Ibrāhīm ibn