The ruling on combining and shortening prayers for one who has entered the time of prayer but has not yet departed?

Question:
He says: If the time for prayer arrives before we travel by plane to the country we are leaving, should he shorten and combine?

Answer:
As long as you have not left, pray four rak'ahs. And if you travel, pray two rak'ahs as long as you are traveling. As long as you are in a country and have not left the country, as long as you are in the country, pray four rak'ahs. Except if the airport is far and the travel is certain with no hesitation, and the airport is far enough to be outside the limits of the town, then he may pray two rak'ahs before boarding the plane if the travel is long and there is no doubt, and he combines. He combines because he has left the town and become a traveler, yes.