Is it permissible for a traveler whose workplace is 350 km away from his residence, and who stays for 15 days, to combine and shorten prayers? And should the Fajr prayer be performed after sunrise in congregation or individually, and silently or audibly?

If a traveler intends to stay four days or more in a specific place, he is considered a resident and is not permitted to avail himself of the concessions of travel, such as combining or shortening prayers, according to the majority of scholars. Thus, one who intends to stay 15 days at his workplace is not considered a traveler. Regarding making up missed prayers, it is recommended to perform them in congregation. There is a difference of opinion among scholars concerning reciting them audibly or silently, while emphasizing the necessity of taking measures to wake up for prayer.