He was born sometime before 200 AH.
He learned ḥadith from ʿAffān ibn Muslim, Qurrah ibn Ḥabīb, ʿAmr ibn Marzūq, ʿAmr ibn Khālid al-Ḥarrānī, Farwah ibn Abī al-Maghrāʾ, Abū al-Walīd al-Ṭayālisī, Saʿīd ibn Manṣūr, ʿAbd al-Salām ibn Muṭahhar, Mūsā ibn Ismāʿīl, Yaḥyā ibn Bukayr, Yaḥyā al-Ḥimmānī, Ibrāhīm ibn al-Ḥajjāj al-Sāmī, Ibrāhīm ibn Muḥammad ibn Arʿarah, Aḥmad ibn Janāb, Aḥmad ibn Yūnus, Umayyah ibn Bisṭām, Bakkār ibn Muḥammad al-Sīrīnī (1), al-Ḥakam ibn Mūsā, Saʿīd ibn Kathīr ibn ʿUfayr, Sahl ibn Bakkār, Shaybān ibn Farrūkh, Sulaymān ibn Bint Shuraḥbīl, Abū Maʿmar al-Muqʿad, ʿUbayd Allāh ibn ʿĀʾishah, ʿAmr ibn ʿAwn al-Wāsiṭī, Muḥammad ibn Sinān al-ʿAwqī, Musaddad, and many others. He collected traditions and produced written compilations.
Among those who transmitted from him were al-Nasāʾī; Abū Ḥātim al-Rāzī—despite his seniority; Abū ʿAwānah in his Ṣaḥīḥ; Muḥammad ibn al-Mundhir Shakkar; Ḥājib ibn Arkīn; Aḥmad ibn ʿAmr ibn Jābir al-Ramlī; Abū al-Ḥasan ibn Jawṣā; Khaythamah al-Aṭrābulusī; ʿAlī ibn al-Ḥasan ibn al-ʿAbd al-Baṣrī, the companion of Abū Dāwūd; Abū Bakr Muḥammad ibn Aḥmad ibn Maḥmawayh al-Ahwāzī; Muḥammad ibn Ismāʿīl al-Fārisī; Muḥammad ibn ʿAlī ibn Ḥamzah al-Anṭākī; Hishām ibn Muḥammad ibn Jaʿfar al-Kindī; Abū al-Qāsim al-Ṭabarānī—by ijāzah—and many others besides.
ʿAbd al-Ghanī ibn Saʿīd the ḥāfiẓ said, “ʿUthmān ibn Khurrazādh is in fact ʿUthmān ibn ʿAbd Allāh.”
The same statement is made by Abū ʿAbd al-Raḥmān—namely, ʿUthmān ibn Ṣāliḥ—as related to me by Abū