One Who travels a Hundred Kilometres
Question:
When a person travels a hundred kilometres to another city, is it permissible for him to combine and shorten his prayer?
Answer:
If a person travels a hundred kilometres or thereabouts from his home town, he may act in accordance with the rulings on travelling, including shortening the prayers, combining two prayers, breaking his fast and wiping over his socks for three days, because this distance is considered travel. Likewise, if he travels eighty kilometres or thereabouts, it is also considered to be a distance which permits shortening of the prayers, according to the majority of the scholars.
Source :
Shaykh `Abdul-`Azeez Bin Baz
Fatawa Islamiyah Vol. 2 Page 426