Should a missed prayer be made up as a shortened or full prayer when traveling, and is what matters the place where it became due or the place where it is being made up?

If the time for two prayers has passed while a Muslim is a resident, and then he travels, he must make up both prayers in full (four rak'ahs for each prayer), because a prayer missed while a resident is made up as a resident prayer, whether it is made up during travel or while a resident.