Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) narrates from Sayyiduna Bilal (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) prayed in the House (the Ka'bah) facing straight ahead of him, then stood and supplicated for a while, then left.
Hadith Referenceالمعجم الكبير للطبراني / باب الباء / 1032