What are the forms of the addition by a trustworthy narrator?

The questioner : The addition by a trustworthy narrator, what do you say about it...?

The Shaykh : I would now like to ask your permission to leave after answering this question.
What is the matter with the addition by a trustworthy narrator?

The questioner : What is the research in it, I mean?

The Shaykh : Yes, the addition by a trustworthy narrator has forms. If the one who brought the addition is a trustworthy narrator over a trustworthy narrator like him who did not bring it, then it is a valid, accepted proof. If the one who added this addition is trustworthy, but the one who did not bring it is more trustworthy than him or greater in number than him, then his addition is anomalous. If this addition is from a weak narrator and not a trustworthy one, and he contradicted the trustworthy narrators in that, then his addition is denounced.
Did I perhaps answer you?

The questioner: Yes.

The Shaykh : And peace be upon you, and Allah's mercy and blessings.
Depart as guided and rightly guided.