(At-twur) 52 : 4
وَالْبَيْتِ الْمَعْمُورِ
And the inhabited house.
Just like the inhabitants of the earth have the Ka’aba at Mecca, which is the center of the world, those who are in the seventh heaven have Baithul Ma’amoor as the Ka’aba there. Lord Allah has taught through His Messenger that every day 70,000 Angels are entering into Baithul Ma’amoor and they never come back from there. That is why it is called ‘inhabited house’. See explanation 17: 1.