Quran 2:149 — The Heifer (Al-Baqarah)

Wherever you go, you shall turn your face (during Salat) towards the Sacred Masjid. This is the truth from your Lord. GOD is never unaware of anything you all do.

[2:148] Each of you chooses the direction to follow; you shall race towards righteousness. Wherever you may be, GOD will summon you all. GOD is Omnipotent.

[2:150] Wherever you go, you shall turn your face (during Salat) towards the Sacred Masjid; wherever you might be, you shall turn your faces (during Salat) towards it. Thus, the people will have no argument against you, except the transgressors among them. Do not fear them, and fear Me instead. I will then perfect My blessings upon you, that you may be guided.