The Kitáb-i-Aqdas
133Raise up and exalt the two Houses in the Twin Hallowed Spots, and the other sites wherein the throne of your Lord, the All-Merciful, hath been established. Thus commandeth you the Lord of every understanding heart.
House in Baghdád,   K32, Q25, Q29, Q32, n54, n154
Other sites, restoration and preservation,   Q32, n154
Spot, in reference to
Baghdád,   Q32, n154
Shíráz,   Q32, n154
Study Guide
(See Note 154)
What are “the two Houses in the Twin Hallowed Spots”?
What is happening where possible to the other sites where Bahá’u’lláh resided?