It is narrated from Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) that the people were offering the Fajr prayer in Quba when a companion came to them and said that the Qur'an has been revealed to the Messenger of Allah (peace and blessings be upon him), and he has been commanded to turn his face towards the Ka'bah. So those people also turned towards the Ka'bah, and their faces were towards Shaam (Syria), then they turned around and faced the Ka'bah.