Fiqh-us-Sunnah Volume 1, Purification and Prayer, Fiqh 1.114B.
Section : If one can see the Ka’bah, he must face that particular direction.
If he can not see it, he must turn in its direction, as this is all that he is able to do. Abu Hurairah reported that the Prophet said, “The qiblah is between the East and the West.” This is related by Ibn Majah and at-Tirmizhi. The latter considers it hassan sahih. This hadith refers to the people of Madinah and whoever has a position similar to them (i.e., the people of Syria, the Arabian Peninsula and Iraq. For the people of Egypt, the qiblah is between the East and the South.)