Does the Hafiz's criticism of Abu al-'Arab for describing Umayyah ibn Khalid in his book *Al-Du'afa'* indicate a specific condition of Abu al-'Arab's that he did not fulfill in his book?

The questioner : May Allah bless you, our Shaykh. Here, in the biography of Umayyah ibn Khalid in *Tahdhib al-Tahdhib*, Abu al-'Arab graded him as weak in his book *Al-Du'afa'*. Ahmad and al-'Uqayli also graded him as weak. Each of the three used terms like "his statement is weak," "weak," "lenient," or something similar. I saw that al-Hafiz Ibn Hajar criticized and faulted Abu al-'Arab's action, even though he did not criticize al-'Uqayli or Ahmad. So I thought that perhaps Abu al-'Arab had a condition in his book *Al-Du'afa'* that anyone he included in it was severely weak. Otherwise, why would he fault him for the word "weak," which Ahmad and al-'Uqayli themselves used? Perhaps Abu al-'Arab had a condition in his book *Al-Du'afa'* of severe censure. I wanted to ask you: does Abu al-'Arab have a condition in his book *Al-Du'afa'* for those he filled it with... with the severely weak?

The Shaykh : I do not know.

The questioner : May Allah bless you.

The Shaykh : I have not come across the book myself. Is there anyone here who has? But a question comes to mind: is this grading the only thing mentioned in this man's biography?

The questioner : Yes, three people graded him as weak: Ahmad and...

The Shaykh : And there is nothing else.

The questioner : Yes, and what caught my attention is why he strongly criticized him. He said, "And it is amazing that Abu al-'Arab included him in his book *Al-Du'afa'* and said 'weak,' even though he transmitted Ahmad's statement and al-'Uqayli's statement!"

The Shaykh : This is named Umayyah ibn Khalid.

The questioner : Yes, this Umayyah ibn Khalid.

The Shaykh : It reminded me. I will look into it tomorrow.

The questioner: May Allah will it.

The Shaykh : This is in *Tahdhib al-Tahdhib*.

The questioner : *Tahdhib al-Tahdhib*, Umayyah ibn Khalid. May Allah bless you.