The ruling on intending two prayers in one prayer with the imam

Question:
The questioner says: I entered the Haram and I was a traveler. That is, for 'Umrah. When I entered the Haram, the imam began the 'Asr prayer, and I had not prayed it yet. So I started with the imam, intending to shorten 'Asr to two rak'ahs, and to pray Zuhr as two rak'ahs within four rak'ahs. What is the ruling on my prayer?

Answer:
The ruling is that it is not valid. You do not intend two prayers in one prayer. You do not intend two prayers in one prayer with the imam; it is not permissible. If you had intended Zuhr, and when the imam says the taslim you stand up and pray 'Asr for the sake of maintaining the order. If you entered with the imam intending Zuhr, then when the imam says the taslim, you pray it as four rak'ahs, because you are required to complete the prayer with the imam, just as the imam does. So when the imam says the taslim, or if you were late and you say the taslim after completing what you missed, meaning you stand up and pray 'Asr?
The result is that your prayer is not valid now, and you must make it up. Yes. Honorable Shaykh. The prayer you prayed with the imam counts as Zuhr, the first prayer. You make up 'Asr. Yes.