What is the ruling on combining and shortening prayers while traveling, taking into account multiple transfers between cities within a single destination, where the duration of stay in each city is more than or less than four days?

Prayer should be shortened while traveling if the distance exceeds 83 kilometers. This shortening continues until the traveler intends to reside for four days or more at their destination. If they intend to reside, they are obligated to complete the prayer from the first day.