Is it permissible to shorten and combine prayers when traveling a distance of 350 kilometers and staying for five days in the country of work, and for how many days is that permissible?

"Whoever intends to reside in a country for more than four days has their travel discontinued, so neither shortening (qasr) nor combining (jam') prayers is permissible for them. This is legislated for them during their journey, going and coming, due to the distance of travel (masafat al-qasr) they cover. Ibn Taymiyyah held the view that a traveler may shorten prayers as long as they have not intended an absolute residence."