What is the degree of authenticity of the hadith (Tell Abu Thabit to seek refuge)

The questioner : ... Tell my Abu Thabit to seek refuge. I said, "My master, and..." righteous, and I issued a ruling on the hadith because of Uthman ibn al-Hakim, who narrates from his grandmother al-Rabab. I said, "As stated in al-Taqrib, he is unknown, and his grandmother al-Rabab is unknown." So we went back to al-Taqrib and found that there are two Uthman al-Hakims: one Uthman al-Hakim is trustworthy, and the other Uthman al-Hakim is unknown. So we did not know which one is the one who narrates from his grandmother al-Rabab. So we went back to the original source, Tahdhib al-Tahdhib, and we found that the Uthman al-Hakim who narrates from his grandmother al-Rabab is the trustworthy one, while the second Uthman al-Hakim is the unknown one. So what is your comment?

The Shaykh : What is my comment? What is the outcome of this?

The questioner : I mean, the hadith

The Shaykh : Did you understand what I want to say? I do not think I am saying what I want to say. If it is established that this is the trustworthy one and not the one reported by al-Hafiz Ibn Hajar, does that establish the hadith?

The questioner : No, his grandmother al-Rabab is unknown, but Uthman al-Hakim

The Shaykh : May Allah guide you. One word and it is covered. Does that establish the hadith? Well, what is the benefit of this question?

The questioner : I do not mean, I mean, is the hadith authentic or weak? We know that the hadith is weak.

The Shaykh : May Allah guide you. I told you just now to ask very important questions. Now, your question is scientific and precise. What does one gain from it?Those present : As long as the hadith remains weak

The questioner : Our Shaykh, I mean

The Shaykh : My brother, I know your intention. May Allah guide you. Did you understand my intention?

The questioner : I understood, but

The Shaykh : What is my intention?

The questioner : That Uthman al-Hakim

The Shaykh : What is my intention?

The questioner : I intended that you said the hadith is weak

The Shaykh : Rest, my brother. May Allah guide you. And this is it. I am telling you, your question is scientific and precise. If it is established that what you read is wrong and what you mentioned is correct, then regarding the hadith, you have not gained its authenticity. But if it necessitates taking the hadith from weakness to authenticity, then that is a very important matter. But since you are admitting now and saying, "No, the hadith will remain weak because of the unknownness of the other narrator," then what is the benefit of this question? This question is asked in a private setting or over the phone, and then I open the book and give you the answer. Please.