Is a person who works in another city during the weekdays for work and returns home on weekends considered a traveler…

If the workplace to which the person regularly commutes is at least 90 km away, and the person stays in the city of the workplace for less than 15 days according to the Hanafis or less than 4 days according to the Shafi'is each time, then if the person stays in a hotel, guesthouse, etc. in that city, they are considered a traveler (musafir) there. However, if the person stays in a residence they own or rent in the city of the workplace, they are not considered a traveler there (see İbn Âbidîn, Reddü’l-muhtâr, 2/131-132; Bilmen, İlmihal, 163).

Source: T.C. Diyanet İşleri Başkanlığı, Din İşleri Yüksek Kurulu