Which principle directly follows from Ibn Sīrīn’s “this knowledge is religion”?

Isnād as Part of Religion: Transmitter Competence, Fitnah, and Connected Transmission

• A convincing meaning makes the transmitter’s identity secondary
• Religious transmission requires assessing the competence and reliability of its source
• Every report by a famous narrator is authoritative without further scrutiny
• A single written chain automatically suffices for authenticity