Combining Prayers Before the Plane Takes Off and the Beginning of Shortening

Question:
He says: Honorable Shaykh, may Allah grant you success, is it in the present time, or after returning from work or from the bed?

Answer:
Likewise, regarding the rulings on the airplane: if the time for the first prayer enters before the plane takes off, he may advance the second prayer and pray it with the first. For example, if the time for the midday prayer (Zuhr) enters and the plane has not yet taken off, he prays the midday and afternoon prayers (Asr) at the beginning of the midday time, as an advanced combination. Similarly, if the time for the sunset prayer (Maghrib) enters and the plane has not yet taken off, he prays the sunset and night prayers (Isha) as an advanced combination. The legal solutions, praise be to Allah, are available. With shortening: no, if he is the leader of the city, he does not shorten. Rather, if he is inside the city from which he is traveling, have you heard that shortening does not begin until one leaves the city?