What is the ruling if forgetfulness occurs before the taslim and forgetfulness occurs after it?

The questioner : This person is asking: If a mistake of forgetfulness occurs before the taslim and a mistake of forgetfulness occurs after the taslim, which one takes precedence? For example, if he prostrates three times and omits the first tashahhud, his deficiency in prostration is before the taslim, and the prostration three times in the extra rak'ah is at the place of prostration after the taslim. So which one takes precedence?

The Shaykh : We give precedence to what was before the taslim, because it is closer to the prayer. Yes, indeed. And let the chain be sound. Let the chain be sound. The tongue is open, the knees are bent, the windows are open, I am sure of it. No, it is necessary that he request it, as we said. Who? The conditions, our brother, the forbidden part. Everything. Let's go. What? The time for you here is only seven o'clock. Please, Shaykh, does the woman say the takbir to lead or say the takbir? No, she does not, she does not, she does not say the takbir, nor does she... Yes. Yes, good. She writes, she writes, it came out.

The presenter : May Allah thank you, Honorable Shaykh, and we ask Allah the Exalted to gather us with you in His Paradise, and that is your command.