Prayer: What’s the prayer rule if travel is 21 km from watan but only 20 km from current residence?

Practical Laws of Islam as per the teachings of Imam Khamenei

Prayer: What’s the prayer rule if travel is 21 km from watan but only 20 km from current residence?

English:

Question #658:

A person lives four kilometers far from his watan for several years, visiting home weekly. What is the rule of his prayer if he travels a distance of 21 km. from his watan and 20 km. from the place in which he studied for several years?

Answer #658:

If he leaves his own watan for the said destination, his prayer should be shortened.

-Imam Khamenei, Practical Laws of Islam, Importance and Conditions of Prayer