It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "The Bayt al-Ma'mur is in the heaven; it is called al-Durah. It is like the Sacred House (al-Bayt al-Haram), directly opposite it (above); if it were to fall, it would fall upon it. Every day seventy thousand angels enter it who have never seen it before, and in the heaven its sanctity is equal to the sanctity of Makkah." (The narrator) said: "And every day seventy thousand angels enter the House who will never enter it again."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 12133