Tadlis al-Taswiyyah: Is it required to explicitly state the transmission in every layer of the chain?

Al-Huwaini: Regarding the narrator who commits tadlis al-taswiyyah, like al-Walid ibn Muslim, the form of tadlis al-taswiyyah is that he uses the abbreviation (‘an ‘an) regarding his shaykh’s shaykh. So, if we assume that he used the abbreviation regarding his shaykh but explicitly stated the transmission in the rest of the layers of the chain, is it accepted, or is it said that he used the abbreviation? I mean: al-Walid ibn Muslim narrates from al-Awza‘i from his shaykh, so what is required of him is to explicitly state the transmission from his shaykh’s shaykh and above, because that is the situation here. So if he says, “From al-Awza‘i, so-and-so told me, he said, ‘I heard so-and-so say, he said, ‘I heard so-and-so say’.”

The Shaykh : No, it is not accepted unless he explicitly states the transmission in every layer. The reason for this, as they said, is that it is not accepted unless he explicitly states the hearing in every layer. The secret behind this, as it appears to me, is that tadlis al-taswiyyah is worse than tadlis al-shuyukh or using the abbreviation regardingThe Shaykh : directly. So, the one who commits tadlis al-taswiyyah is not far from falling into the tadlis that is lesser than it. Therefore, they required that he explicitly state the transmission in every layer of the chain.
Al-Huwaini: But, for example, if this narrator only commits tadlis al-taswiyyah?

The Shaykh : And I say, this is the answer to your question?
Al-Huwaini: No, the possibility may arise in the one who was tested with tadlis al-isnad in the rest...

The Shaykh : It is not a condition, I mean, al-Walid ibn Muslim, you gave him as an example, they did not describe him with both types of tadlis, they only described him with tadlis al-taswiyyah, and yet they required for the validity of his hadith: that he explicitly stated the transmission in every layer of the chain.
Al-Huwaini: Is he required to explicitly state it regarding his shaykh as well?

The Shaykh : Yes, indeed.
Al-Huwaini: May Allah reward you with good.

The Shaykh : Glory be to You, O Allah, and with Your praise, I bear witness that there is no god but Allah, You...
Al-Halabi : You mentioned to me in this that tadlis al-taswiyyah is in addition to ordinary tadlis, and is not separate from it such that we treat this with one thing and that with another. It should be treated with ordinary tadlis, then with tadlis al-taswiyyah.

The Shaykh : This is more appropriate...
Al-Halabi : Yes, indeed. May Allah reward you with good, O Shaykh.

The Shaykh : And may Allah protect you.

The questioner : May Allah reward you with good, O Shaykh.

The Shaykh : May Allah preserve you.