What follows from “adraka al-jāhiliyyah” about Abū ʿUthmān and Abū Rāfiʿ?

Historical Examples of Muʿanʿan Transmission and the Conclusion of Muslim’s Introduction

• Every one of their reports is textually certain
• Both are independently proven to be Companions of the Prophet
• They lived in pre-Islamic times, while the passage says they accompanied Companions
• Their meeting with Ubayy is necessarily recorded in the report