Between al-Khawarnaq and al-Sadīr and Bāriq …
and the House with lofty balconies at Sandād.

The opening of this ode (1)
[from the Kāmil metre]

I know full well—though the years stretch long for me—
that the road is the road that ends at the bier.
What hope is left me after the clan of Muḥarriq,
after they and the tribe of Iyād abandoned their homes?
They settled at Anqara, where upon them flows
Euphrates-water descending from the mountains:
land of al-Khawarnaq, al-Sadīr, and Bāriq,
and the House with soaring balconies at Sandād.
The winds have swept across the site of their dwellings,
as though they had kept an appointed tryst with ruin.
And I can see that comfort—every pastime men delight in—
will one day turn to decay and perish.

Al-Suhaylī said (2):
Al-Khawarnaq was a palace that al-Nuʿmān the Elder built for Sābūr so that his son might reside there with him. It was constructed by a man called Sinimmār over twenty years, and no building more marvellous had ever been seen. Al-Nuʿmān feared that Sinimmār might erect something similar for someone else, so he threw him from the top of the palace and killed him. Concerning this a poet (3) said [from the Basīṭ metre]:

He repaid me—may God repay him with the worst of recompense—
with the recompense of Sinimmār, though I had done no wrong,
save that he had set the stones in place, twenty full years,
lacing them tight with tiles and liquid mortar.
When at last, one day, the structure reached completion
and stood like a lofty, rugged mountain peak,
he hurled Sinimmār head-first from the summit—
by God, that is among the gravest of calamities.

Al-Suhaylī further said: al-Jāḥiẓ quotes these verses in his Book of Animals (6). “Sinimmār” is also one of the names given to the moon (7).

The point is that all of these shrines were demolished when Islam arrived; the Messenger of God ﷺ dispatched expeditions against each one of them