What is the authenticity of the athar of Abu al-Darda' that agrees with the athar of Abu Ayyub?

The student : You are referring to the athar of Abu al-Darda', which also agrees with the athar of Abu Ayyub, found here: that its narrators are trustworthy. I mean, if we look at the details, whether it is mursal or muttasil, you discussed this point!

The Shaykh : Yes.
The student : It was narrated by Nu'aym ibn Mubarak, from the narration of Nu'aym, from the additions of Nu'aym.

The Shaykh : Nu'aym is well known.
The student : Ah, so Nu'aym is weak.

The Shaykh: Yes.
The student : So here, it is not said: "This addition is judged by us, and we say: this is a weak chain, because it is from the addition of Nu'aym?"

The Shaykh : This addition, this is a corroborating narration, a shahid for another narration!
The student : Yes, that is right, but we judged that its narrators are trustworthy...

The Shaykh : Yes, its narrators are trustworthy, from where? From the author to the Tabi'i.
The student: Yes.

The Shaykh : The one who is a Khadim, or his son who is a young Tabi'i, meaning this is often the case, for example, like this al-Dinawari and others like him, so he is spoken about critically, but this book is a compilation, so do not discard his narration entirely, nor rely on it as proof, but rather consider it and cite it as evidence...
The student : Yes, very good.

The Shaykh : And the biography of Nu'aym, meaning there is no need for a note that the soul likes to be reminded of, because he is famous for being weak...
The student : May Allah reward you with good.