I saw Abu Uthman Amr bin Sulaym passing judgments at his door. My father said, He is the one from whom Mahdi bin Maymun narrated, and from whom Mutarrif bin Tareef, Rabi bin Sabih, and Layth bin Abu Sulaym also narrated.
حدثنا
رأيت أبا عثمان عمرو بن سليم يقضي على بابه قال أبي وهو الذي روى عنه مهدي بن ميمون وروى عنه مطرف بن طريف وربيع بن صبيح وليث بن أبي سليم
No references are available.
Its isnad is sahih, but it is not a hadith. Rather, Ahmad presents an isnad to introduce Abu Uthman Ansari, the judge.