The claim that the hadith of the Saved Sect is not established

Question:
The questioner says: Some people claim that the hadith of the Saved Sect is not found in the authentic collections, that there is no consensus on its authenticity, and that some have weakened it, so it is not permissible to cite it as evidence. What is your Eminence’s view on this?

Answer:
It must be in a more authentic book. The answer is: It is a Sunnah, and praise be to Allah. If only what is in the authentic collections were valid, the scholars would not have compiled these books, the Sunan and the Musnads.
So this talk is nothing; this talk is nothing. And regarding the weakening of some hadiths: one person authenticates them, while others weaken them. Who is the one who is correct? Is it the one who authenticates or the one who weakens? This is a matter where one says, “So-and-so weakened it, and so-and-so,” and that is the end of it; he does not look into it. This is the affair of the scholars, not the affair of those who think they are scholars. They weaken, they argue, and they are satisfied with the argument. This is the affair of the people of knowledge, insight, and those firmly grounded in knowledge.