[Avodah] Gr"a and the 3 shevu'ot

[SBA]

From: "Shoshana L. Boublil" <>
.."The Return to Jerusalem: The renewal of the Jewish Settlements in Eretz 
Yisrael during the 19th century", by Prof. Aryeh Morgenstern...The book 
connects between 2 threads, as apparently the Gr"a explained that the 3 
shevu'ot refer only to Beit HaMikdash itself, but they can (and should) 
rebuild Israel and prepare what is needed for the Beit HaMikdash.
>>

Where does the Gra say this?

SBA