Is the tawruk performed in the first tashahhud or in the second?

The questioner : You mentioned in the description of the Prophet’s (peace and blessings be upon him) prayer that the recommended practice (sunnah) in the tashahhud is iftirash, except in the third rak'ah of Maghrib or the fourth rak'ah of a four-rak'ah prayer, where one performs tawruk, based on the hadith of Ibn 'Umar Do you not see, out of your kindness, that the statement of the Companion who narrated the prayer of the Prophet (peace and blessings be upon him) said that when he was in the tashahhud from which he would say the taslim, he would perform tawruk? Is this not the more appropriate thing to take from the hadith...?

The Shaykh : And did we say the opposite of that?

The questioner : I mean, for example, in the two rak'ahs of Fajr, in the tashahhud of Fajr, after which comes the taslim, does one perform tawruk or iftirash?

The Shaykh : No, here one performs iftirash. And you mean the two-rak'ah prayer? No, clarify your question. Do you have a hadith other than this that clarifies for you that tawruk is performed in every tashahhud followed by a salam, even if it is a single tashahhud?

The questioner : No, there is no such precision.

The Shaykh : Okay, there is no such precision. That is one point. Second, in which hadith did this phrase appear?

The questioner : The hadith of Abu Humayd.

The Shaykh : Okay, the hadith of Abu Humayd details it,

The questioner: Yes.

The Shaykh : It mentioned the first tashahhud and mentioned iftirash in it, then it mentioned the final tashahhud and mentioned tawruk in it. So how is generalization derived from it? Is my point clear?

The questioner : Alright, yes, may Allah reward you.